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Finding the Fourth Proportional to 16,600.80, 22,908.96 and 9,531.12

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Solution

The fourth proportional to 16,600.80, 22,908.96 and 9,531.12 is: 13,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,600.80 : 22,908.96 = 9,531.12 : x
  2. Step 2: Convert to fraction form
    16,600.80/22,908.96 = 9,531.12/x
  3. Step 3: Cross multiply
    16,600.80x = 22,908.96 × 9,531.12
  4. Step 4: Simplify right side
    16,600.80x = 218,348,046.84
  5. Step 5: Solve for x
    x = 218,348,046.84/16,600.80
  6. Step 6: Final answer
    x = 13,152.86

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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.