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Finding the Third Proportional to 13,108.50 and 27,981

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Solution

The third proportional to 13,108.50 and 27,981 is: 59,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.50 : 27,981 = 27,981 : x
  2. Step 2: Convert to fraction form
    13,108.50/27,981 = 27,981/x
  3. Step 3: Cross multiply
    13,108.50x = 27,981 × 27,981
  4. Step 4: Simplify right side
    13,108.50x = 782,936,361
  5. Step 5: Solve for x
    x = 782,936,361/13,108.50
  6. Step 6: Final answer
    x = 59,727.38

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.