It takes 3,000 pieces to pave the floor with square bricks with a side length of 15 cm. If the floor is paved with square bricks with a side length of 25 cm, how many pieces are needed? (Solve with ratio)
用边长15厘米的方砖铺地，需要3000块，如果改用边长25厘米的方砖铺地，需要多少块？(用比例解)
<gadget id="calculator">15 * 15 * 3_000</gadget>
<output>675_000</output>

<gadget id="calculator">25 * 25</gadget>
<output>625</output>

<gadget id="calculator">675_000 / 625</gadget>
<output>1_080</output>

<result>1_080</result>