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Finding the Third Proportional to 3,738 and 4,689

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Solution

The third proportional to 3,738 and 4,689 is: 5,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738 : 4,689 = 4,689 : x
  2. Step 2: Convert to fraction form
    3,738/4,689 = 4,689/x
  3. Step 3: Cross multiply
    3,738x = 4,689 × 4,689
  4. Step 4: Simplify right side
    3,738x = 21,986,721
  5. Step 5: Solve for x
    x = 21,986,721/3,738
  6. Step 6: Final answer
    x = 5,881.95

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.