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Byju's Answer
Standard XII
Mathematics
Mean Deviation about Mean
If 5, x, 45 a...
Question
If 5,x,45 and y are in continued proportion, find the values of x and y.
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Solution
If ' x ' is Third Proportion of ' a ' and ' b ' .
Then ,
a : x = x : b
x² = ab
x = √ ab
According to the problem given,
a = 5 , b = 45
x = √ ( 5 × 45 )
=√ ( 5 × 5 ×9)
=5 ×3
=15
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