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Finding the Fourth Proportional to 70,006.20, 104,942.90 and 27,912.15

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Solution

The fourth proportional to 70,006.20, 104,942.90 and 27,912.15 is: 41,841.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,006.20 : 104,942.90 = 27,912.15 : x
  2. Step 2: Convert to fraction form
    70,006.20/104,942.90 = 27,912.15/x
  3. Step 3: Cross multiply
    70,006.20x = 104,942.90 × 27,912.15
  4. Step 4: Simplify right side
    70,006.20x = 2,929,181,826.67
  5. Step 5: Solve for x
    x = 2,929,181,826.67/70,006.20
  6. Step 6: Final answer
    x = 41,841.75

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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.