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Finding the Third Proportional to 4,600 and 10,172

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Solution

The third proportional to 4,600 and 10,172 is: 22,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,600 : 10,172 = 10,172 : x
  2. Step 2: Convert to fraction form
    4,600/10,172 = 10,172/x
  3. Step 3: Cross multiply
    4,600x = 10,172 × 10,172
  4. Step 4: Simplify right side
    4,600x = 103,469,584
  5. Step 5: Solve for x
    x = 103,469,584/4,600
  6. Step 6: Final answer
    x = 22,493.39

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.