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Finding the Fourth Proportional to 3,930.82, 5,891.98 and 1,983.18

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Solution

The fourth proportional to 3,930.82, 5,891.98 and 1,983.18 is: 2,972.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.82 : 5,891.98 = 1,983.18 : x
  2. Step 2: Convert to fraction form
    3,930.82/5,891.98 = 1,983.18/x
  3. Step 3: Cross multiply
    3,930.82x = 5,891.98 × 1,983.18
  4. Step 4: Simplify right side
    3,930.82x = 11,684,856.90
  5. Step 5: Solve for x
    x = 11,684,856.90/3,930.82
  6. Step 6: Final answer
    x = 2,972.63

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