Huang Qiang's height is 1.5 meters, and his shadow length is 24 meters. At the same time and at the same place, the shadow length of a tree is measured to be 7.2 meters. How tall is this tree? (Solve with ratio)
黄强的身高是1.5米，他的影长是24米．在同一时间、同一地点，测得一棵树的影长是7.2米，这棵树有多高？(用比例解)
<gadget id="calculator">24 / 1.5</gadget>
<output>16</output>

<gadget id="calculator">7.2 / 16</gadget>
<output>0.45</output>

<result>0.45</result>