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Finding the Fourth Proportional to 5,807.28, 8,712.48 and 2,109.84

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Solution

The fourth proportional to 5,807.28, 8,712.48 and 2,109.84 is: 3,165.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.28 : 8,712.48 = 2,109.84 : x
  2. Step 2: Convert to fraction form
    5,807.28/8,712.48 = 2,109.84/x
  3. Step 3: Cross multiply
    5,807.28x = 8,712.48 × 2,109.84
  4. Step 4: Simplify right side
    5,807.28x = 18,381,938.80
  5. Step 5: Solve for x
    x = 18,381,938.80/5,807.28
  6. Step 6: Final answer
    x = 3,165.33

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