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📰 We want positive ratio. Try $ y = \frac{-7 + \sqrt{7}}{9} \approx \frac{-7 + 2.6458}{9} = \frac{-4.3542}{9} \approx -0.484 $, negative. Other root: $ \frac{-7 - 2.6458}{9} < 0 $. Both negative — meaning $ A/d < 0 $, so first and last have opposite signs — impossible for $ A^2 + (A+3d)^2 = (sum)^2 $ unless not ordered. 📰 Wait — the original assumption about ordering may be wrong. Try symmetric AP: let the four terms be $ a - 3d, a - d, a + d, a + 3d $ — symmetric around $ a $. This is a valid arithmetic progression with common difference $ 2d $, but we can scale. Define as AP with common difference $ 2d' $, but to match convention, let common difference be $ 2d $, so terms: $ a - 3d, a - d, a + d, a + 3d $. Then first: $ a - 3d $, last: $ a + 3d $, sum of squares: $ (a-3d)^2 + (a+3d)^2 = 2a^2 + 18d^2 $. Sum of all: $ 4a $, square: $ 16a^2 $. Set equal: 📰 2a^2 + 18d^2 = 16a^2 \Rightarrow 18d^2 = 14a^2 \Rightarrow \frac{d^2}{a^2} = \frac{14}{18} = \frac{7}{9}. 📰 The Ratio Of Sulfur Dioxide To Carbon Dioxide Is 53 7517427 📰 Anime Girl Bikini Dont Miss These Blossom Filled Mode Moments 3869732 📰 Programiz Tricks That Will Make You The Best Coder Fast Try Them Today 5669495 📰 Stagtette Party Games Thatll Get The Whole Group Rotating Dont Miss Out 1379649 📰 Wwf Smackdown Ps1 Gameshark Code Characters Id Stone Cold 270757 📰 You Wont Believe Edena Hines Secret Pastshockingly Personal Details Just Dropped 3254332 📰 Game Changing Thc Gummies You Need In Your Routineproven Popularity Guaranteed 1600367 📰 Hongdae Guy 2514828 📰 Character Creator Games 5358009 📰 Game Show Network 2017043 📰 Business Credit Card Comparison 2672218 📰 Discover The Secret Way Of Life That Transforms Your Daily Routine Overnight 5051603 📰 Pokepark Secrets Exposed Employ These Redeem Codes Level Up Your Game Instantly 8555734 📰 From Hollywood Legend To Open Gay Icon John Travoltas Surprising Story 1929362 📰 Spectrum Downno Signal No Internet No Explanation The Chaos Begins Now 1267578