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Finding the Third Proportional to 4,638 and 10,151

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Solution

The third proportional to 4,638 and 10,151 is: 22,217.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638 : 10,151 = 10,151 : x
  2. Step 2: Convert to fraction form
    4,638/10,151 = 10,151/x
  3. Step 3: Cross multiply
    4,638x = 10,151 × 10,151
  4. Step 4: Simplify right side
    4,638x = 103,042,801
  5. Step 5: Solve for x
    x = 103,042,801/4,638
  6. Step 6: Final answer
    x = 22,217.08

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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.