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Finding the Fourth Proportional to 5,686.92, 8,531.28 and 2,400.48

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Solution

The fourth proportional to 5,686.92, 8,531.28 and 2,400.48 is: 3,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.92 : 8,531.28 = 2,400.48 : x
  2. Step 2: Convert to fraction form
    5,686.92/8,531.28 = 2,400.48/x
  3. Step 3: Cross multiply
    5,686.92x = 8,531.28 × 2,400.48
  4. Step 4: Simplify right side
    5,686.92x = 20,479,167.01
  5. Step 5: Solve for x
    x = 20,479,167.01/5,686.92
  6. Step 6: Final answer
    x = 3,601.10

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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.