Mark places A and B on a map with a scale of 1:25000000. It is known that the actual distance between A and B is 4500 kilometers, how many centimeters are the distance between the two places on the map?
在比例尺是1：25000000的地图上标出甲、乙两地．已知甲、乙两地的实际距离是4500千米，图上两地相距多少厘米？
<gadget id="calculator">1 / 25_000_000</gadget>
<output>1/25_000_000 = around 0</output>

<gadget id="calculator">4_500 * 100_000 * (1/25_000_000)</gadget>
<output>18</output>

<result>18</result>