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Finding the Fourth Proportional to 16,474.56, 22,734.90 and 8,920.90

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Solution

The fourth proportional to 16,474.56, 22,734.90 and 8,920.90 is: 12,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,474.56 : 22,734.90 = 8,920.90 : x
  2. Step 2: Convert to fraction form
    16,474.56/22,734.90 = 8,920.90/x
  3. Step 3: Cross multiply
    16,474.56x = 22,734.90 × 8,920.90
  4. Step 4: Simplify right side
    16,474.56x = 202,815,769.41
  5. Step 5: Solve for x
    x = 202,815,769.41/16,474.56
  6. Step 6: Final answer
    x = 12,310.85

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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.