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Finding the Fourth Proportional to 16,472.85, 22,732.55 and 8,919.18

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Solution

The fourth proportional to 16,472.85, 22,732.55 and 8,919.18 is: 12,308.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,472.85 : 22,732.55 = 8,919.18 : x
  2. Step 2: Convert to fraction form
    16,472.85/22,732.55 = 8,919.18/x
  3. Step 3: Cross multiply
    16,472.85x = 22,732.55 × 8,919.18
  4. Step 4: Simplify right side
    16,472.85x = 202,755,705.31
  5. Step 5: Solve for x
    x = 202,755,705.31/16,472.85
  6. Step 6: Final answer
    x = 12,308.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.