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Finding the Fourth Proportional to 45,873.68, 68,793.99 and 15,879.76

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Solution

The fourth proportional to 45,873.68, 68,793.99 and 15,879.76 is: 23,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,873.68 : 68,793.99 = 15,879.76 : x
  2. Step 2: Convert to fraction form
    45,873.68/68,793.99 = 15,879.76/x
  3. Step 3: Cross multiply
    45,873.68x = 68,793.99 × 15,879.76
  4. Step 4: Simplify right side
    45,873.68x = 1,092,432,295.40
  5. Step 5: Solve for x
    x = 1,092,432,295.40/45,873.68
  6. Step 6: Final answer
    x = 23,813.93

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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.