14 point charges of +2.3 micro-coulombs are placed on the perimeter of a circle. Also, charges of -2.3 micro-coulombs, -4.0 micro-coulombs, and -1.3 micro-coulombs are also placed on this perimeter as well. The circle's radius is then decreased by a factor of 5 and this causes the total potential at the center of the circle to increase by 56 x 103 Volts. What is the original radius of the circle in meters?