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Finding the Fourth Proportional to 67,062.31, 100,609.04 and 19,675.49

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Solution

The fourth proportional to 67,062.31, 100,609.04 and 19,675.49 is: 29,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,062.31 : 100,609.04 = 19,675.49 : x
  2. Step 2: Convert to fraction form
    67,062.31/100,609.04 = 19,675.49/x
  3. Step 3: Cross multiply
    67,062.31x = 100,609.04 × 19,675.49
  4. Step 4: Simplify right side
    67,062.31x = 1,979,531,747.65
  5. Step 5: Solve for x
    x = 1,979,531,747.65/67,062.31
  6. Step 6: Final answer
    x = 29,517.80

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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.