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Finding the Third Proportional to 16,638.75 and 27,469.13

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Solution

The third proportional to 16,638.75 and 27,469.13 is: 45,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,638.75 : 27,469.13 = 27,469.13 : x
  2. Step 2: Convert to fraction form
    16,638.75/27,469.13 = 27,469.13/x
  3. Step 3: Cross multiply
    16,638.75x = 27,469.13 × 27,469.13
  4. Step 4: Simplify right side
    16,638.75x = 754,552,828.27
  5. Step 5: Solve for x
    x = 754,552,828.27/16,638.75
  6. Step 6: Final answer
    x = 45,349.13

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.