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Finding the Fourth Proportional to 71,326.62, 98,432.22 and 39,062.58

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Solution

The fourth proportional to 71,326.62, 98,432.22 and 39,062.58 is: 53,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,326.62 : 98,432.22 = 39,062.58 : x
  2. Step 2: Convert to fraction form
    71,326.62/98,432.22 = 39,062.58/x
  3. Step 3: Cross multiply
    71,326.62x = 98,432.22 × 39,062.58
  4. Step 4: Simplify right side
    71,326.62x = 3,845,016,468.33
  5. Step 5: Solve for x
    x = 3,845,016,468.33/71,326.62
  6. Step 6: Final answer
    x = 53,907.17

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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.