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Finding the Third Proportional to 951 and 2,172

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Solution

The third proportional to 951 and 2,172 is: 4,960.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    951 : 2,172 = 2,172 : x
  2. Step 2: Convert to fraction form
    951/2,172 = 2,172/x
  3. Step 3: Cross multiply
    951x = 2,172 × 2,172
  4. Step 4: Simplify right side
    951x = 4,717,584
  5. Step 5: Solve for x
    x = 4,717,584/951
  6. Step 6: Final answer
    x = 4,960.66

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Why These Related Problems?

These problems maintain the same ratio (2.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.