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Finding the Fourth Proportional to 47,993.92, 71,990.57 and 16,388.73

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Solution

The fourth proportional to 47,993.92, 71,990.57 and 16,388.73 is: 24,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,993.92 : 71,990.57 = 16,388.73 : x
  2. Step 2: Convert to fraction form
    47,993.92/71,990.57 = 16,388.73/x
  3. Step 3: Cross multiply
    47,993.92x = 71,990.57 × 16,388.73
  4. Step 4: Simplify right side
    47,993.92x = 1,179,834,055.25
  5. Step 5: Solve for x
    x = 1,179,834,055.25/47,993.92
  6. Step 6: Final answer
    x = 24,582.99

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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.