
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
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December 17th, 2016, 07:35 AM  #1 
Newbie Joined: Dec 2016 From: pakistan Posts: 2 Thanks: 0  I have looked in online tutorials on properties of proportion and elsewhere but no
I have looked all properties of proportion in online tutorials and in textbooks but nowhere I found this property. if x,y,z are in continued proportion then (x+y+z)/(xy+z)=(x+y+z)²/x²+y²+z². Please tell me which property this is. x² means x squared. (x+y+z)² means squared. I hope you understand. Thanks. Last edited by skipjack; December 17th, 2016 at 09:00 AM. 

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