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Find The Fourth Proportional to 2xy, X2 And Y2. - ICSE Class 10 - Mathematics

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Question

Find the fourth proportional to 2xy, x2 and y2.

Solution

Let the fourth proportional to `2xy, x^2 and y^2` be n

`=> 2xy : x^2 = y^2 : n`

`=> 2xy x n = x^2 xx y^2`

`=> n = (x^2y^2)/(2xy) = (xy)/2`

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APPEARS IN

 Selina Solution for Selina ICSE Concise Mathematics for Class 10 (2018-2019) (2017 to Current)
Chapter 7: Ratio and Proportion (Including Properties and Uses)
Ex.7D | Q: 9.1

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Solution Find The Fourth Proportional to 2xy, X2 And Y2. Concept: Proportions.
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