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Finding the Third Proportional to 84,260 and 126,924

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Solution

The third proportional to 84,260 and 126,924 is: 191,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,260 : 126,924 = 126,924 : x
  2. Step 2: Convert to fraction form
    84,260/126,924 = 126,924/x
  3. Step 3: Cross multiply
    84,260x = 126,924 × 126,924
  4. Step 4: Simplify right side
    84,260x = 16,109,701,776
  5. Step 5: Solve for x
    x = 16,109,701,776/84,260
  6. Step 6: Final answer
    x = 191,190.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.