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Finding the Fourth Proportional to 12,274.92, 16,939.62 and 7,309.80

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Solution

The fourth proportional to 12,274.92, 16,939.62 and 7,309.80 is: 10,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.92 : 16,939.62 = 7,309.80 : x
  2. Step 2: Convert to fraction form
    12,274.92/16,939.62 = 7,309.80/x
  3. Step 3: Cross multiply
    12,274.92x = 16,939.62 × 7,309.80
  4. Step 4: Simplify right side
    12,274.92x = 123,825,234.28
  5. Step 5: Solve for x
    x = 123,825,234.28/12,274.92
  6. Step 6: Final answer
    x = 10,087.66

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