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Finding the Fourth Proportional to 60,821.52, 91,221.11 and 16,451.84

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Solution

The fourth proportional to 60,821.52, 91,221.11 and 16,451.84 is: 24,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,821.52 : 91,221.11 = 16,451.84 : x
  2. Step 2: Convert to fraction form
    60,821.52/91,221.11 = 16,451.84/x
  3. Step 3: Cross multiply
    60,821.52x = 91,221.11 × 16,451.84
  4. Step 4: Simplify right side
    60,821.52x = 1,500,754,567.98
  5. Step 5: Solve for x
    x = 1,500,754,567.98/60,821.52
  6. Step 6: Final answer
    x = 24,674.73

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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.