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Finding the Third Proportional to 39,039 and 86,811

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Solution

The third proportional to 39,039 and 86,811 is: 193,041.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,039 : 86,811 = 86,811 : x
  2. Step 2: Convert to fraction form
    39,039/86,811 = 86,811/x
  3. Step 3: Cross multiply
    39,039x = 86,811 × 86,811
  4. Step 4: Simplify right side
    39,039x = 7,536,149,721
  5. Step 5: Solve for x
    x = 7,536,149,721/39,039
  6. Step 6: Final answer
    x = 193,041.57

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.