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Finding the Third Proportional to 844 and 1,172

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Solution

The third proportional to 844 and 1,172 is: 1,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    844 : 1,172 = 1,172 : x
  2. Step 2: Convert to fraction form
    844/1,172 = 1,172/x
  3. Step 3: Cross multiply
    844x = 1,172 × 1,172
  4. Step 4: Simplify right side
    844x = 1,373,584
  5. Step 5: Solve for x
    x = 1,373,584/844
  6. Step 6: Final answer
    x = 1,627.47

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.