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Finding the Third Proportional to 39,644 and 83,180

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Solution

The third proportional to 39,644 and 83,180 is: 174,526.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,644 : 83,180 = 83,180 : x
  2. Step 2: Convert to fraction form
    39,644/83,180 = 83,180/x
  3. Step 3: Cross multiply
    39,644x = 83,180 × 83,180
  4. Step 4: Simplify right side
    39,644x = 6,918,912,400
  5. Step 5: Solve for x
    x = 6,918,912,400/39,644
  6. Step 6: Final answer
    x = 174,526.09

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.