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Finding the Third Proportional to 18,435 and 27,672

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Solution

The third proportional to 18,435 and 27,672 is: 41,537.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,435 : 27,672 = 27,672 : x
  2. Step 2: Convert to fraction form
    18,435/27,672 = 27,672/x
  3. Step 3: Cross multiply
    18,435x = 27,672 × 27,672
  4. Step 4: Simplify right side
    18,435x = 765,739,584
  5. Step 5: Solve for x
    x = 765,739,584/18,435
  6. Step 6: Final answer
    x = 41,537.27

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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.