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Finding the Third Proportional to 38,626 and 84,631

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Solution

The third proportional to 38,626 and 84,631 is: 185,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,626 : 84,631 = 84,631 : x
  2. Step 2: Convert to fraction form
    38,626/84,631 = 84,631/x
  3. Step 3: Cross multiply
    38,626x = 84,631 × 84,631
  4. Step 4: Simplify right side
    38,626x = 7,162,406,161
  5. Step 5: Solve for x
    x = 7,162,406,161/38,626
  6. Step 6: Final answer
    x = 185,429.66

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.