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Finding the Fourth Proportional to 67,280.88, 100,872.14 and 22,895.72

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Solution

The fourth proportional to 67,280.88, 100,872.14 and 22,895.72 is: 34,326.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,280.88 : 100,872.14 = 22,895.72 : x
  2. Step 2: Convert to fraction form
    67,280.88/100,872.14 = 22,895.72/x
  3. Step 3: Cross multiply
    67,280.88x = 100,872.14 × 22,895.72
  4. Step 4: Simplify right side
    67,280.88x = 2,309,540,273.24
  5. Step 5: Solve for x
    x = 2,309,540,273.24/67,280.88
  6. Step 6: Final answer
    x = 34,326.84

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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.