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Finding the Fourth Proportional to 68,229.65, 94,163.85 and 38,019.89

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Solution

The fourth proportional to 68,229.65, 94,163.85 and 38,019.89 is: 52,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,229.65 : 94,163.85 = 38,019.89 : x
  2. Step 2: Convert to fraction form
    68,229.65/94,163.85 = 38,019.89/x
  3. Step 3: Cross multiply
    68,229.65x = 94,163.85 × 38,019.89
  4. Step 4: Simplify right side
    68,229.65x = 3,580,099,218.98
  5. Step 5: Solve for x
    x = 3,580,099,218.98/68,229.65
  6. Step 6: Final answer
    x = 52,471.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.