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Finding the Third Proportional to 2,469 and 5,257.50

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Solution

The third proportional to 2,469 and 5,257.50 is: 11,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,469 : 5,257.50 = 5,257.50 : x
  2. Step 2: Convert to fraction form
    2,469/5,257.50 = 5,257.50/x
  3. Step 3: Cross multiply
    2,469x = 5,257.50 × 5,257.50
  4. Step 4: Simplify right side
    2,469x = 27,641,306.25
  5. Step 5: Solve for x
    x = 27,641,306.25/2,469
  6. Step 6: Final answer
    x = 11,195.34

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.