It takes 1,200 pieces to pave the multimedia classroom with square bricks with an area of 36 square decimeters; how many pieces are needed if the square bricks with an area of 25 square decimeters are used instead? (Solution with proportional knowledge)
用面积是36平方分米的方砖给多媒体电教室铺地，需要1200块；如果改用面积25平方分米的方砖铺地，需要多少块？(用比例知识解)
<gadget id="calculator">36 * 1_200</gadget>
<output>43_200</output>

<gadget id="calculator">43_200 / 25</gadget>
<output>1_728</output>

<result>1_728</result>