The ratio of the bottom area of a rectangular parallelepiped container to that of a cylindrical container is 5:3. Now pour 12 decimeters of water from the rectangular parallelepiped container into the cylindrical container. What is the depth of the water in the cylindrical container? (column ratio calculation)
一个长方体容器和一个圆柱形容器底面积的比是5：3，现将长方体容器中12分米高的水倒入到圆柱形容器中，圆柱形容器中的水深是多少分米？(列比例式计算)
<gadget id="calculator">12 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 / 3</gadget>
<output>20</output>

<result>20</result>