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Finding the Third Proportional to 27,321 and 41,775

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Solution

The third proportional to 27,321 and 41,775 is: 63,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321 : 41,775 = 41,775 : x
  2. Step 2: Convert to fraction form
    27,321/41,775 = 41,775/x
  3. Step 3: Cross multiply
    27,321x = 41,775 × 41,775
  4. Step 4: Simplify right side
    27,321x = 1,745,150,625
  5. Step 5: Solve for x
    x = 1,745,150,625/27,321
  6. Step 6: Final answer
    x = 63,875.80

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.