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Finding the Fourth Proportional to 49,562.44, 74,343.66 and 21,879.88

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Solution

The fourth proportional to 49,562.44, 74,343.66 and 21,879.88 is: 32,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,562.44 : 74,343.66 = 21,879.88 : x
  2. Step 2: Convert to fraction form
    49,562.44/74,343.66 = 21,879.88/x
  3. Step 3: Cross multiply
    49,562.44x = 74,343.66 × 21,879.88
  4. Step 4: Simplify right side
    49,562.44x = 1,626,630,359.56
  5. Step 5: Solve for x
    x = 1,626,630,359.56/49,562.44
  6. Step 6: Final answer
    x = 32,819.82

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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.