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Finding the Third Proportional to 11,548 and 15,469

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Solution

The third proportional to 11,548 and 15,469 is: 20,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,548 : 15,469 = 15,469 : x
  2. Step 2: Convert to fraction form
    11,548/15,469 = 15,469/x
  3. Step 3: Cross multiply
    11,548x = 15,469 × 15,469
  4. Step 4: Simplify right side
    11,548x = 239,289,961
  5. Step 5: Solve for x
    x = 239,289,961/11,548
  6. Step 6: Final answer
    x = 20,721.33

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.