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Finding the Fourth Proportional to 12,037.12, 18,060 and 7,414.72

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Solution

The fourth proportional to 12,037.12, 18,060 and 7,414.72 is: 11,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,037.12 : 18,060 = 7,414.72 : x
  2. Step 2: Convert to fraction form
    12,037.12/18,060 = 7,414.72/x
  3. Step 3: Cross multiply
    12,037.12x = 18,060 × 7,414.72
  4. Step 4: Simplify right side
    12,037.12x = 133,909,843.20
  5. Step 5: Solve for x
    x = 133,909,843.20/12,037.12
  6. Step 6: Final answer
    x = 11,124.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.