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Finding the Fourth Proportional to 17,793.18, 26,672.49 and 7,407.90

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Solution

The fourth proportional to 17,793.18, 26,672.49 and 7,407.90 is: 11,104.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,793.18 : 26,672.49 = 7,407.90 : x
  2. Step 2: Convert to fraction form
    17,793.18/26,672.49 = 7,407.90/x
  3. Step 3: Cross multiply
    17,793.18x = 26,672.49 × 7,407.90
  4. Step 4: Simplify right side
    17,793.18x = 197,587,138.67
  5. Step 5: Solve for x
    x = 197,587,138.67/17,793.18
  6. Step 6: Final answer
    x = 11,104.66

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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.