Check whether the following numbers are in continued proportion.

$1, 2, 3$

Check whether the following numbers are in continued proportion.

$9, 12, 16$

Check whether the following numbers are in continued proportion.

$3, 5, 8$

$a, b, c$ are in continued proportion. If $a=3$ and $c=27$ then find $b$.

Convert the ratio $37:500$ into percentage.(Write answer in decimal)

If $\frac{5}{8}=k\%$ then find the value of $k$. 

If the conversion of the ratio $\frac{22}{30}$  into percentage (corrected to two decimal places) is $k\%$, then find the value of $k$.

Convert the ratio $\frac{5}{16}$ into percentage. Express in decimal form.

If the ratio $\frac{144}{1200}$ is converted to $k\%$, then find the value of $k$