It is known that the circumference of a circle is 31.4cm. There is a point P in the same plane as this circle. The distance from point P to the nearest point on the circumference is xcm, and the distance from point P to the furthest point on the circumference is ycm. And x:y=2:3, what is the distance in cm from point P to the center of the circle?
已知一个圆的周长是31.4cm，与此圆在同一个平面内有一个点P，点P到圆周上最近的一点距离为xcm，点P到圆周长上最远的一点距离为ycm，且x：y=2：3，则点P到圆心的距离是多少cm？
<gadget id="calculator">31.4 / 3.14</gadget>
<output>10</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">10 / 1</gadget>
<output>10</output>

<gadget id="calculator">10 * 2</gadget>
<output>20</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">20 + 5</gadget>
<output>25</output>

<result>25</result>