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Finding the Fourth Proportional to 3,471.62, 5,207.08 and 1,911.11

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Solution

The fourth proportional to 3,471.62, 5,207.08 and 1,911.11 is: 2,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.62 : 5,207.08 = 1,911.11 : x
  2. Step 2: Convert to fraction form
    3,471.62/5,207.08 = 1,911.11/x
  3. Step 3: Cross multiply
    3,471.62x = 5,207.08 × 1,911.11
  4. Step 4: Simplify right side
    3,471.62x = 9,951,302.66
  5. Step 5: Solve for x
    x = 9,951,302.66/3,471.62
  6. Step 6: Final answer
    x = 2,866.47

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