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Finding the Fourth Proportional to 31,083.29, 42,894.95 and 16,936.13

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Solution

The fourth proportional to 31,083.29, 42,894.95 and 16,936.13 is: 23,371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,083.29 : 42,894.95 = 16,936.13 : x
  2. Step 2: Convert to fraction form
    31,083.29/42,894.95 = 16,936.13/x
  3. Step 3: Cross multiply
    31,083.29x = 42,894.95 × 16,936.13
  4. Step 4: Simplify right side
    31,083.29x = 726,474,472.10
  5. Step 5: Solve for x
    x = 726,474,472.10/31,083.29
  6. Step 6: Final answer
    x = 23,371.87

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