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Finding the Third Proportional to 7,183.50 and 11,469

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Solution

The third proportional to 7,183.50 and 11,469 is: 18,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,183.50 : 11,469 = 11,469 : x
  2. Step 2: Convert to fraction form
    7,183.50/11,469 = 11,469/x
  3. Step 3: Cross multiply
    7,183.50x = 11,469 × 11,469
  4. Step 4: Simplify right side
    7,183.50x = 131,537,961
  5. Step 5: Solve for x
    x = 131,537,961/7,183.50
  6. Step 6: Final answer
    x = 18,311.12

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.