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Finding the Third Proportional to 17,120 and 27,165

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Solution

The third proportional to 17,120 and 27,165 is: 43,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120 : 27,165 = 27,165 : x
  2. Step 2: Convert to fraction form
    17,120/27,165 = 27,165/x
  3. Step 3: Cross multiply
    17,120x = 27,165 × 27,165
  4. Step 4: Simplify right side
    17,120x = 737,937,225
  5. Step 5: Solve for x
    x = 737,937,225/17,120
  6. Step 6: Final answer
    x = 43,103.81

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.