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Finding the Third Proportional to 4,512 and 5,872

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Solution

The third proportional to 4,512 and 5,872 is: 7,641.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,512 : 5,872 = 5,872 : x
  2. Step 2: Convert to fraction form
    4,512/5,872 = 5,872/x
  3. Step 3: Cross multiply
    4,512x = 5,872 × 5,872
  4. Step 4: Simplify right side
    4,512x = 34,480,384
  5. Step 5: Solve for x
    x = 34,480,384/4,512
  6. Step 6: Final answer
    x = 7,641.93

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.