On a map with a scale of 1:2000000, the distance between AB and AB is 5 cm. How many centimeters is the distance between AB and AB on another map with a scale of 1:2500000?
在一幅比例尺为1：2000000的地图上测得AB两地的距离为5厘米，则在另一幅比例尺为1：2500000的地图上AB两地的距离为多少厘米？
<gadget id="calculator">1 / 2_000_000</gadget>
<output>1/2_000_000 = around 0</output>

<gadget id="calculator">5 / (1/2_000_000)</gadget>
<output>10_000_000</output>

<gadget id="calculator">1 / 2_500_000</gadget>
<output>1/2_500_000 = around 0</output>

<gadget id="calculator">10_000_000 * (1/2_500_000)</gadget>
<output>4</output>

<result>4</result>