find the mean proportional to 1 upon 4 and 1 upon 25
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let the mean proportional be x
then,
1/4 ×1/25 = x × x
1/100 = x × x
x = √1/100
x= 1/10
x= 0.1
then,
1/4 ×1/25 = x × x
1/100 = x × x
x = √1/100
x= 1/10
x= 0.1
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