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Finding the Fourth Proportional to 11,793.48, 17,672.84 and 8,817.96

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Solution

The fourth proportional to 11,793.48, 17,672.84 and 8,817.96 is: 13,213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.48 : 17,672.84 = 8,817.96 : x
  2. Step 2: Convert to fraction form
    11,793.48/17,672.84 = 8,817.96/x
  3. Step 3: Cross multiply
    11,793.48x = 17,672.84 × 8,817.96
  4. Step 4: Simplify right side
    11,793.48x = 155,838,352.12
  5. Step 5: Solve for x
    x = 155,838,352.12/11,793.48
  6. Step 6: Final answer
    x = 13,213.94

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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.