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Finding the Third Proportional to 39,366 and 83,988

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Solution

The third proportional to 39,366 and 83,988 is: 179,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,366 : 83,988 = 83,988 : x
  2. Step 2: Convert to fraction form
    39,366/83,988 = 83,988/x
  3. Step 3: Cross multiply
    39,366x = 83,988 × 83,988
  4. Step 4: Simplify right side
    39,366x = 7,053,984,144
  5. Step 5: Solve for x
    x = 7,053,984,144/39,366
  6. Step 6: Final answer
    x = 179,189.76

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.