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Finding the Third Proportional to 84,706 and 126,648

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Solution

The third proportional to 84,706 and 126,648 is: 189,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,706 : 126,648 = 126,648 : x
  2. Step 2: Convert to fraction form
    84,706/126,648 = 126,648/x
  3. Step 3: Cross multiply
    84,706x = 126,648 × 126,648
  4. Step 4: Simplify right side
    84,706x = 16,039,715,904
  5. Step 5: Solve for x
    x = 16,039,715,904/84,706
  6. Step 6: Final answer
    x = 189,357.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.