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Finding the Fourth Proportional to 62,658.80, 93,997.14 and 20,529.87

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Solution

The fourth proportional to 62,658.80, 93,997.14 and 20,529.87 is: 30,797.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,658.80 : 93,997.14 = 20,529.87 : x
  2. Step 2: Convert to fraction form
    62,658.80/93,997.14 = 20,529.87/x
  3. Step 3: Cross multiply
    62,658.80x = 93,997.14 × 20,529.87
  4. Step 4: Simplify right side
    62,658.80x = 1,929,749,064.57
  5. Step 5: Solve for x
    x = 1,929,749,064.57/62,658.80
  6. Step 6: Final answer
    x = 30,797.74

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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.