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Finding the Fourth Proportional to 67,914.73, 101,872.14 and 21,167.56

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Solution

The fourth proportional to 67,914.73, 101,872.14 and 21,167.56 is: 31,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,914.73 : 101,872.14 = 21,167.56 : x
  2. Step 2: Convert to fraction form
    67,914.73/101,872.14 = 21,167.56/x
  3. Step 3: Cross multiply
    67,914.73x = 101,872.14 × 21,167.56
  4. Step 4: Simplify right side
    67,914.73x = 2,156,384,635.78
  5. Step 5: Solve for x
    x = 2,156,384,635.78/67,914.73
  6. Step 6: Final answer
    x = 31,751.35

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1.5x scale

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.