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Finding the Fourth Proportional to 16,613.15, 24,921.14 and 8,287.70

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Solution

The fourth proportional to 16,613.15, 24,921.14 and 8,287.70 is: 12,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,613.15 : 24,921.14 = 8,287.70 : x
  2. Step 2: Convert to fraction form
    16,613.15/24,921.14 = 8,287.70/x
  3. Step 3: Cross multiply
    16,613.15x = 24,921.14 × 8,287.70
  4. Step 4: Simplify right side
    16,613.15x = 206,538,765.93
  5. Step 5: Solve for x
    x = 206,538,765.93/16,613.15
  6. Step 6: Final answer
    x = 12,432.25

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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.