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Finding the Fourth Proportional to 45,891.33, 68,839.01 and 12,614.67

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Solution

The fourth proportional to 45,891.33, 68,839.01 and 12,614.67 is: 18,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,891.33 : 68,839.01 = 12,614.67 : x
  2. Step 2: Convert to fraction form
    45,891.33/68,839.01 = 12,614.67/x
  3. Step 3: Cross multiply
    45,891.33x = 68,839.01 × 12,614.67
  4. Step 4: Simplify right side
    45,891.33x = 868,381,331.20
  5. Step 5: Solve for x
    x = 868,381,331.20/45,891.33
  6. Step 6: Final answer
    x = 18,922.56

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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.