Xiao Ming wants to change the former term of the ratio of 3:2 to 9, but also keep the ratio unchanged, how much should he change the latter term of the ratio to
小明想把3：2中比的前项变为9，又要使比值不变，他应该把比的后项变为多少
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>