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Finding the Fourth Proportional to 67,488.88, 92,982.72 and 47,051.68

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Solution

The fourth proportional to 67,488.88, 92,982.72 and 47,051.68 is: 64,825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,488.88 : 92,982.72 = 47,051.68 : x
  2. Step 2: Convert to fraction form
    67,488.88/92,982.72 = 47,051.68/x
  3. Step 3: Cross multiply
    67,488.88x = 92,982.72 × 47,051.68
  4. Step 4: Simplify right side
    67,488.88x = 4,374,993,186.97
  5. Step 5: Solve for x
    x = 4,374,993,186.97/67,488.88
  6. Step 6: Final answer
    x = 64,825.39

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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.