Two harvesters harvest 10.8 hectares of wheat field in 3 hours. According to this calculation, how many hours does it take for one harvester to harvest 43.2 hectares of wheat field?
2台收割机3小时收割10.8公顷麦地，照这样计算，要收割43.2公顷麦地，一台收割机需要多少小时完成？
<gadget id="calculator">10.8 / 3 / 2</gadget>
<output>1.8</output>

<gadget id="calculator">43.2 / 1.8</gadget>
<output>24</output>

<result>24</result>