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Finding the Fourth Proportional to 28,793.56, 43,092.40 and 17,694.40

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Solution

The fourth proportional to 28,793.56, 43,092.40 and 17,694.40 is: 26,481.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.56 : 43,092.40 = 17,694.40 : x
  2. Step 2: Convert to fraction form
    28,793.56/43,092.40 = 17,694.40/x
  3. Step 3: Cross multiply
    28,793.56x = 43,092.40 × 17,694.40
  4. Step 4: Simplify right side
    28,793.56x = 762,494,162.56
  5. Step 5: Solve for x
    x = 762,494,162.56/28,793.56
  6. Step 6: Final answer
    x = 26,481.41

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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.