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Finding the Third Proportional to 26,620 and 41,390

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Solution

The third proportional to 26,620 and 41,390 is: 64,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620 : 41,390 = 41,390 : x
  2. Step 2: Convert to fraction form
    26,620/41,390 = 41,390/x
  3. Step 3: Cross multiply
    26,620x = 41,390 × 41,390
  4. Step 4: Simplify right side
    26,620x = 1,713,132,100
  5. Step 5: Solve for x
    x = 1,713,132,100/26,620
  6. Step 6: Final answer
    x = 64,355.08

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.