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Finding the Third Proportional to 17,121 and 25,565

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Solution

The third proportional to 17,121 and 25,565 is: 38,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,121 : 25,565 = 25,565 : x
  2. Step 2: Convert to fraction form
    17,121/25,565 = 25,565/x
  3. Step 3: Cross multiply
    17,121x = 25,565 × 25,565
  4. Step 4: Simplify right side
    17,121x = 653,569,225
  5. Step 5: Solve for x
    x = 653,569,225/17,121
  6. Step 6: Final answer
    x = 38,173.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.