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Finding the Fourth Proportional to 16,512.56, 22,787.24 and 8,958.86

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Solution

The fourth proportional to 16,512.56, 22,787.24 and 8,958.86 is: 12,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,512.56 : 22,787.24 = 8,958.86 : x
  2. Step 2: Convert to fraction form
    16,512.56/22,787.24 = 8,958.86/x
  3. Step 3: Cross multiply
    16,512.56x = 22,787.24 × 8,958.86
  4. Step 4: Simplify right side
    16,512.56x = 204,147,692.95
  5. Step 5: Solve for x
    x = 204,147,692.95/16,512.56
  6. Step 6: Final answer
    x = 12,363.18

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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.