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Finding the Fourth Proportional to 16,489.46, 22,755.42 and 8,935.97

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Solution

The fourth proportional to 16,489.46, 22,755.42 and 8,935.97 is: 12,331.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.46 : 22,755.42 = 8,935.97 : x
  2. Step 2: Convert to fraction form
    16,489.46/22,755.42 = 8,935.97/x
  3. Step 3: Cross multiply
    16,489.46x = 22,755.42 × 8,935.97
  4. Step 4: Simplify right side
    16,489.46x = 203,341,636.68
  5. Step 5: Solve for x
    x = 203,341,636.68/16,489.46
  6. Step 6: Final answer
    x = 12,331.61

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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.