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Finding the Third Proportional to 17,240 and 25,860

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Solution

The third proportional to 17,240 and 25,860 is: 38,790

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,240 : 25,860 = 25,860 : x
  2. Step 2: Convert to fraction form
    17,240/25,860 = 25,860/x
  3. Step 3: Cross multiply
    17,240x = 25,860 × 25,860
  4. Step 4: Simplify right side
    17,240x = 668,739,600
  5. Step 5: Solve for x
    x = 668,739,600/17,240
  6. Step 6: Final answer
    x = 38,790

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.