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Finding the Fourth Proportional to 16,939.81, 25,418.39 and 8,065.18

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Solution

The fourth proportional to 16,939.81, 25,418.39 and 8,065.18 is: 12,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.81 : 25,418.39 = 8,065.18 : x
  2. Step 2: Convert to fraction form
    16,939.81/25,418.39 = 8,065.18/x
  3. Step 3: Cross multiply
    16,939.81x = 25,418.39 × 8,065.18
  4. Step 4: Simplify right side
    16,939.81x = 205,003,890.66
  5. Step 5: Solve for x
    x = 205,003,890.66/16,939.81
  6. Step 6: Final answer
    x = 12,101.90

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