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Finding the Third Proportional to 26,450 and 40,989

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Solution

The third proportional to 26,450 and 40,989 is: 63,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,450 : 40,989 = 40,989 : x
  2. Step 2: Convert to fraction form
    26,450/40,989 = 40,989/x
  3. Step 3: Cross multiply
    26,450x = 40,989 × 40,989
  4. Step 4: Simplify right side
    26,450x = 1,680,098,121
  5. Step 5: Solve for x
    x = 1,680,098,121/26,450
  6. Step 6: Final answer
    x = 63,519.78

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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.