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Finding the Third Proportional to 17,420 and 26,292

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Solution

The third proportional to 17,420 and 26,292 is: 39,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,420 : 26,292 = 26,292 : x
  2. Step 2: Convert to fraction form
    17,420/26,292 = 26,292/x
  3. Step 3: Cross multiply
    17,420x = 26,292 × 26,292
  4. Step 4: Simplify right side
    17,420x = 691,269,264
  5. Step 5: Solve for x
    x = 691,269,264/17,420
  6. Step 6: Final answer
    x = 39,682.51

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.