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Finding the Fourth Proportional to 73,747.82, 110,621.52 and 18,343.82

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Solution

The fourth proportional to 73,747.82, 110,621.52 and 18,343.82 is: 27,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,747.82 : 110,621.52 = 18,343.82 : x
  2. Step 2: Convert to fraction form
    73,747.82/110,621.52 = 18,343.82/x
  3. Step 3: Cross multiply
    73,747.82x = 110,621.52 × 18,343.82
  4. Step 4: Simplify right side
    73,747.82x = 2,029,221,251.01
  5. Step 5: Solve for x
    x = 2,029,221,251.01/73,747.82
  6. Step 6: Final answer
    x = 27,515.68

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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.