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Finding the Fourth Proportional to 16,658.16, 24,978.75 and 5,560.86

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Solution

The fourth proportional to 16,658.16, 24,978.75 and 5,560.86 is: 8,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.16 : 24,978.75 = 5,560.86 : x
  2. Step 2: Convert to fraction form
    16,658.16/24,978.75 = 5,560.86/x
  3. Step 3: Cross multiply
    16,658.16x = 24,978.75 × 5,560.86
  4. Step 4: Simplify right side
    16,658.16x = 138,903,331.73
  5. Step 5: Solve for x
    x = 138,903,331.73/16,658.16
  6. Step 6: Final answer
    x = 8,338.46

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1.5x scale

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.