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Finding the Third Proportional to 12,756 and 27,561

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Solution

The third proportional to 12,756 and 27,561 is: 59,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756 : 27,561 = 27,561 : x
  2. Step 2: Convert to fraction form
    12,756/27,561 = 27,561/x
  3. Step 3: Cross multiply
    12,756x = 27,561 × 27,561
  4. Step 4: Simplify right side
    12,756x = 759,608,721
  5. Step 5: Solve for x
    x = 759,608,721/12,756
  6. Step 6: Final answer
    x = 59,549.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.