bottle of beverage is poured into a cylindrical cup with a bottom area of 75cm**2, and the depth of the beverage part is 6 cm. If it is poured into a cylindrical cup with a bottom area of 90cm**2, how many centimeters is the depth of the beverage part? (Solve with ratio)
一瓶饮料，把它倒入底面积是75cm**2的圆柱形杯子中，饮料部分深6厘米，如果倒入一个底面积是90cm**2的圆柱形杯子中，饮料部分深多少厘米？(用比例解)
<gadget id="calculator">75 * 6</gadget>
<output>450</output>

<gadget id="calculator">450 / 90</gadget>
<output>5</output>

<result>5</result>