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Finding the Fourth Proportional to 29,785.52, 44,661.72 and 12,267.20

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Solution

The fourth proportional to 29,785.52, 44,661.72 and 12,267.20 is: 18,393.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,785.52 : 44,661.72 = 12,267.20 : x
  2. Step 2: Convert to fraction form
    29,785.52/44,661.72 = 12,267.20/x
  3. Step 3: Cross multiply
    29,785.52x = 44,661.72 × 12,267.20
  4. Step 4: Simplify right side
    29,785.52x = 547,874,251.58
  5. Step 5: Solve for x
    x = 547,874,251.58/29,785.52
  6. Step 6: Final answer
    x = 18,393.98

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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.