On a 1:20000 map, the distance between A and B is 36 cm. What is the actual distance between A and B in meters?
在1：20000的地图上量得甲、乙两地距离是36厘米，甲、乙两地的实际距离是多少米．
<gadget id="calculator">1 / 20_000</gadget>
<output>1/20_000 = around 0.00005</output>

<gadget id="calculator">36 / (1/20_000)</gadget>
<output>720_000</output>

<gadget id="calculator">720_000 / 100</gadget>
<output>7_200</output>

<result>7_200</result>