On a map with a scale of 1:5,000,000, the distance from city A to city B is 54 cm, so what is the actual distance in kilometers from city A to city B?
在比例尺1：5000000的地图上，量得A城市到B城市的距离是54厘米，那么A城市到B城市的实际距离是多少千米
<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">54 / (1/5_000_000) / 100_000</gadget>
<output>2_700</output>

<result>2_700</result>