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Finding the Fourth Proportional to 3,789.73, 5,689.89 and 1,942.12

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Solution

The fourth proportional to 3,789.73, 5,689.89 and 1,942.12 is: 2,915.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.73 : 5,689.89 = 1,942.12 : x
  2. Step 2: Convert to fraction form
    3,789.73/5,689.89 = 1,942.12/x
  3. Step 3: Cross multiply
    3,789.73x = 5,689.89 × 1,942.12
  4. Step 4: Simplify right side
    3,789.73x = 11,050,449.17
  5. Step 5: Solve for x
    x = 11,050,449.17/3,789.73
  6. Step 6: Final answer
    x = 2,915.89

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