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Finding the Fourth Proportional to 16,691.53, 23,034.11 and 9,137.79

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Solution

The fourth proportional to 16,691.53, 23,034.11 and 9,137.79 is: 12,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.53 : 23,034.11 = 9,137.79 : x
  2. Step 2: Convert to fraction form
    16,691.53/23,034.11 = 9,137.79/x
  3. Step 3: Cross multiply
    16,691.53x = 23,034.11 × 9,137.79
  4. Step 4: Simplify right side
    16,691.53x = 210,480,937.62
  5. Step 5: Solve for x
    x = 210,480,937.62/16,691.53
  6. Step 6: Final answer
    x = 12,610.04

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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.