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Finding the Fourth Proportional to 67,375.25, 92,982.09 and 38,703.88

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Solution

The fourth proportional to 67,375.25, 92,982.09 and 38,703.88 is: 53,413.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,375.25 : 92,982.09 = 38,703.88 : x
  2. Step 2: Convert to fraction form
    67,375.25/92,982.09 = 38,703.88/x
  3. Step 3: Cross multiply
    67,375.25x = 92,982.09 × 38,703.88
  4. Step 4: Simplify right side
    67,375.25x = 3,598,767,653.51
  5. Step 5: Solve for x
    x = 3,598,767,653.51/67,375.25
  6. Step 6: Final answer
    x = 53,413.79

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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.