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Finding the Fourth Proportional to 57,766.67, 86,650.14 and 15,647.01

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Solution

The fourth proportional to 57,766.67, 86,650.14 and 15,647.01 is: 23,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,766.67 : 86,650.14 = 15,647.01 : x
  2. Step 2: Convert to fraction form
    57,766.67/86,650.14 = 15,647.01/x
  3. Step 3: Cross multiply
    57,766.67x = 86,650.14 × 15,647.01
  4. Step 4: Simplify right side
    57,766.67x = 1,355,815,665.76
  5. Step 5: Solve for x
    x = 1,355,815,665.76/57,766.67
  6. Step 6: Final answer
    x = 23,470.55

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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.