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Finding the Fourth Proportional to 67,372.58, 92,992.14 and 39,801.44

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Solution

The fourth proportional to 67,372.58, 92,992.14 and 39,801.44 is: 54,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,372.58 : 92,992.14 = 39,801.44 : x
  2. Step 2: Convert to fraction form
    67,372.58/92,992.14 = 39,801.44/x
  3. Step 3: Cross multiply
    67,372.58x = 92,992.14 × 39,801.44
  4. Step 4: Simplify right side
    67,372.58x = 3,701,221,080.68
  5. Step 5: Solve for x
    x = 3,701,221,080.68/67,372.58
  6. Step 6: Final answer
    x = 54,936.61

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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.