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Finding the Third Proportional to 39,544 and 86,112

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Solution

The third proportional to 39,544 and 86,112 is: 187,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,544 : 86,112 = 86,112 : x
  2. Step 2: Convert to fraction form
    39,544/86,112 = 86,112/x
  3. Step 3: Cross multiply
    39,544x = 86,112 × 86,112
  4. Step 4: Simplify right side
    39,544x = 7,415,276,544
  5. Step 5: Solve for x
    x = 7,415,276,544/39,544
  6. Step 6: Final answer
    x = 187,519.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.