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Finding the Fourth Proportional to 5,057.11, 6,978.49 and 2,932.72

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Solution

The fourth proportional to 5,057.11, 6,978.49 and 2,932.72 is: 4,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,057.11 : 6,978.49 = 2,932.72 : x
  2. Step 2: Convert to fraction form
    5,057.11/6,978.49 = 2,932.72/x
  3. Step 3: Cross multiply
    5,057.11x = 6,978.49 × 2,932.72
  4. Step 4: Simplify right side
    5,057.11x = 20,465,932.41
  5. Step 5: Solve for x
    x = 20,465,932.41/5,057.11
  6. Step 6: Final answer
    x = 4,046.96

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