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Finding the Fourth Proportional to 6,572.73, 9,861.02 and 3,906.79

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Solution

The fourth proportional to 6,572.73, 9,861.02 and 3,906.79 is: 5,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,572.73 : 9,861.02 = 3,906.79 : x
  2. Step 2: Convert to fraction form
    6,572.73/9,861.02 = 3,906.79/x
  3. Step 3: Cross multiply
    6,572.73x = 9,861.02 × 3,906.79
  4. Step 4: Simplify right side
    6,572.73x = 38,524,934.33
  5. Step 5: Solve for x
    x = 38,524,934.33/6,572.73
  6. Step 6: Final answer
    x = 5,861.33

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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.