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Finding the Fourth Proportional to 5,581.11, 8,352.29 and 3,471.87

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Solution

The fourth proportional to 5,581.11, 8,352.29 and 3,471.87 is: 5,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.11 : 8,352.29 = 3,471.87 : x
  2. Step 2: Convert to fraction form
    5,581.11/8,352.29 = 3,471.87/x
  3. Step 3: Cross multiply
    5,581.11x = 8,352.29 × 3,471.87
  4. Step 4: Simplify right side
    5,581.11x = 28,998,047.72
  5. Step 5: Solve for x
    x = 28,998,047.72/5,581.11
  6. Step 6: Final answer
    x = 5,195.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.