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Find the value of a, if 3, 9 and a are in continuous proportion.
Given :
3,9 and a are in Continued Proportion.
To do :
We have to find the value of a.
Solution :
3,9 and a are in Continued Proportion.
Therefore,
$\frac{3}{9} = \frac{9}{a}$
$3\times a = 9 \times 9$
$3a = 81$
$a = \frac{81}{3}$
$a = 27$.
The value of a is 27.
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