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Finding the Third Proportional to 4,039 and 8,693

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Solution

The third proportional to 4,039 and 8,693 is: 18,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,039 : 8,693 = 8,693 : x
  2. Step 2: Convert to fraction form
    4,039/8,693 = 8,693/x
  3. Step 3: Cross multiply
    4,039x = 8,693 × 8,693
  4. Step 4: Simplify right side
    4,039x = 75,568,249
  5. Step 5: Solve for x
    x = 75,568,249/4,039
  6. Step 6: Final answer
    x = 18,709.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.