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Finding the Fourth Proportional to 62,692.66, 93,972.84 and 20,561.73

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Solution

The fourth proportional to 62,692.66, 93,972.84 and 20,561.73 is: 30,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,692.66 : 93,972.84 = 20,561.73 : x
  2. Step 2: Convert to fraction form
    62,692.66/93,972.84 = 20,561.73/x
  3. Step 3: Cross multiply
    62,692.66x = 93,972.84 × 20,561.73
  4. Step 4: Simplify right side
    62,692.66x = 1,932,244,163.41
  5. Step 5: Solve for x
    x = 1,932,244,163.41/62,692.66
  6. Step 6: Final answer
    x = 30,820.90

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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.