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Finding the Third Proportional to 27,400 and 29,960

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Solution

The third proportional to 27,400 and 29,960 is: 32,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,400 : 29,960 = 29,960 : x
  2. Step 2: Convert to fraction form
    27,400/29,960 = 29,960/x
  3. Step 3: Cross multiply
    27,400x = 29,960 × 29,960
  4. Step 4: Simplify right side
    27,400x = 897,601,600
  5. Step 5: Solve for x
    x = 897,601,600/27,400
  6. Step 6: Final answer
    x = 32,759.18

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.