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Finding the Fourth Proportional to 3,864.12, 5,325.12 and 3,793.03

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Solution

The fourth proportional to 3,864.12, 5,325.12 and 3,793.03 is: 5,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.12 : 5,325.12 = 3,793.03 : x
  2. Step 2: Convert to fraction form
    3,864.12/5,325.12 = 3,793.03/x
  3. Step 3: Cross multiply
    3,864.12x = 5,325.12 × 3,793.03
  4. Step 4: Simplify right side
    3,864.12x = 20,198,339.91
  5. Step 5: Solve for x
    x = 20,198,339.91/3,864.12
  6. Step 6: Final answer
    x = 5,227.15

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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.