The numbers a, b and c are in constant proportion, if a = 3 and c = 27 then what will be the value of b?
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Step-by-step explanation:Given a, b and c are in continued proportion
⇒
b
a
=
c
b
⇒ac=b
2
⇒3×27=b
2
⇒81=b
2
⇒b=9.
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