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Finding the Fourth Proportional to 11,169.72, 16,751.97 and 3,270.48

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Solution

The fourth proportional to 11,169.72, 16,751.97 and 3,270.48 is: 4,904.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,169.72 : 16,751.97 = 3,270.48 : x
  2. Step 2: Convert to fraction form
    11,169.72/16,751.97 = 3,270.48/x
  3. Step 3: Cross multiply
    11,169.72x = 16,751.97 × 3,270.48
  4. Step 4: Simplify right side
    11,169.72x = 54,786,982.85
  5. Step 5: Solve for x
    x = 54,786,982.85/11,169.72
  6. Step 6: Final answer
    x = 4,904.96

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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.