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Finding the Fourth Proportional to 16,613.20, 24,919.80 and 11,364.40

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Solution

The fourth proportional to 16,613.20, 24,919.80 and 11,364.40 is: 17,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,613.20 : 24,919.80 = 11,364.40 : x
  2. Step 2: Convert to fraction form
    16,613.20/24,919.80 = 11,364.40/x
  3. Step 3: Cross multiply
    16,613.20x = 24,919.80 × 11,364.40
  4. Step 4: Simplify right side
    16,613.20x = 283,198,575.12
  5. Step 5: Solve for x
    x = 283,198,575.12/16,613.20
  6. Step 6: Final answer
    x = 17,046.60

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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.