Question

10 , 40 find the mean proportional between the quantities in each pair given below
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Answer 1

Step-by-step explanation:

let the mean proportional between 10 and 40 be x

then , 10 : x : : x : 40

product of means = product of extreme

x × x = 10 × 40

(x)² = 400

x = √400

x =20

hence, mean proportional between 10 and 40 is 20

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Answer 2

Step-by-step explanation:

let the mean be x

b=√axc

x=√10x40

x=400

x=20

therefore,mean proportional is 20