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Finding the Third Proportional to 54,638 and 82,342

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Solution

The third proportional to 54,638 and 82,342 is: 124,093.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638 : 82,342 = 82,342 : x
  2. Step 2: Convert to fraction form
    54,638/82,342 = 82,342/x
  3. Step 3: Cross multiply
    54,638x = 82,342 × 82,342
  4. Step 4: Simplify right side
    54,638x = 6,780,204,964
  5. Step 5: Solve for x
    x = 6,780,204,964/54,638
  6. Step 6: Final answer
    x = 124,093.21

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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.