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Finding the Fourth Proportional to 16,655.92, 24,978.40 and 5,559.32

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Solution

The fourth proportional to 16,655.92, 24,978.40 and 5,559.32 is: 8,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,655.92 : 24,978.40 = 5,559.32 : x
  2. Step 2: Convert to fraction form
    16,655.92/24,978.40 = 5,559.32/x
  3. Step 3: Cross multiply
    16,655.92x = 24,978.40 × 5,559.32
  4. Step 4: Simplify right side
    16,655.92x = 138,862,918.69
  5. Step 5: Solve for x
    x = 138,862,918.69/16,655.92
  6. Step 6: Final answer
    x = 8,337.15

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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.