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Finding the Third Proportional to 27,981 and 60,885

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Solution

The third proportional to 27,981 and 60,885 is: 132,482.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981 : 60,885 = 60,885 : x
  2. Step 2: Convert to fraction form
    27,981/60,885 = 60,885/x
  3. Step 3: Cross multiply
    27,981x = 60,885 × 60,885
  4. Step 4: Simplify right side
    27,981x = 3,706,983,225
  5. Step 5: Solve for x
    x = 3,706,983,225/27,981
  6. Step 6: Final answer
    x = 132,482.16

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.