On a map with a scale of 1:60000000, the distance between A and B on the map is 15 cm. What is the actual distance in miles between A and B?
在一幅比例尺是1：60000000的地图上，量得甲、乙两地的图上距离是15厘米．甲、乙两地的实际距离是多少千米．
<gadget id="calculator">1 / 60_000_000</gadget>
<output>1/60_000_000 = around 0</output>

<gadget id="calculator">15 / (1/60_000_000) / 100_000</gadget>
<output>9_000</output>

<result>9_000</result>