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Finding the Fourth Proportional to 20,753.75, 31,114.69 and 10,747.82

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Solution

The fourth proportional to 20,753.75, 31,114.69 and 10,747.82 is: 16,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.75 : 31,114.69 = 10,747.82 : x
  2. Step 2: Convert to fraction form
    20,753.75/31,114.69 = 10,747.82/x
  3. Step 3: Cross multiply
    20,753.75x = 31,114.69 × 10,747.82
  4. Step 4: Simplify right side
    20,753.75x = 334,415,087.48
  5. Step 5: Solve for x
    x = 334,415,087.48/20,753.75
  6. Step 6: Final answer
    x = 16,113.48

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