If $a, b, c$ are in continued proportion, then

If $a, b, c$ are in continued proportion, then
  1. $b^{2} = ac$
  2. $a^{2} = bc$
  3. $c^{2} = ab$
  4. $a + c = 2b$

Solution

$\dfrac{a}{b} = \dfrac{b}{c} \Rightarrow b^{2} = ac$.

Asked in: MH-SSC-9

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