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Finding the Fourth Proportional to 31,502.09, 47,252.39 and 12,777.09

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Solution

The fourth proportional to 31,502.09, 47,252.39 and 12,777.09 is: 19,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,502.09 : 47,252.39 = 12,777.09 : x
  2. Step 2: Convert to fraction form
    31,502.09/47,252.39 = 12,777.09/x
  3. Step 3: Cross multiply
    31,502.09x = 47,252.39 × 12,777.09
  4. Step 4: Simplify right side
    31,502.09x = 603,747,975.86
  5. Step 5: Solve for x
    x = 603,747,975.86/31,502.09
  6. Step 6: Final answer
    x = 19,165.33

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