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Finding the Third Proportional to 17,660 and 26,390

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Solution

The third proportional to 17,660 and 26,390 is: 39,435.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,660 : 26,390 = 26,390 : x
  2. Step 2: Convert to fraction form
    17,660/26,390 = 26,390/x
  3. Step 3: Cross multiply
    17,660x = 26,390 × 26,390
  4. Step 4: Simplify right side
    17,660x = 696,432,100
  5. Step 5: Solve for x
    x = 696,432,100/17,660
  6. Step 6: Final answer
    x = 39,435.57

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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.