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Finding the Fourth Proportional to 49,672, 74,508.18 and 47,180.44

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Solution

The fourth proportional to 49,672, 74,508.18 and 47,180.44 is: 70,770.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,672 : 74,508.18 = 47,180.44 : x
  2. Step 2: Convert to fraction form
    49,672/74,508.18 = 47,180.44/x
  3. Step 3: Cross multiply
    49,672x = 74,508.18 × 47,180.44
  4. Step 4: Simplify right side
    49,672x = 3,515,328,716.00
  5. Step 5: Solve for x
    x = 3,515,328,716.00/49,672
  6. Step 6: Final answer
    x = 70,770.83

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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.