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Finding the Fourth Proportional to 45,873.64, 68,793.95 and 15,879.73

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Solution

The fourth proportional to 45,873.64, 68,793.95 and 15,879.73 is: 23,813.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,873.64 : 68,793.95 = 15,879.73 : x
  2. Step 2: Convert to fraction form
    45,873.64/68,793.95 = 15,879.73/x
  3. Step 3: Cross multiply
    45,873.64x = 68,793.95 × 15,879.73
  4. Step 4: Simplify right side
    45,873.64x = 1,092,429,348.34
  5. Step 5: Solve for x
    x = 1,092,429,348.34/45,873.64
  6. Step 6: Final answer
    x = 23,813.88

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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.