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Finding the Third Proportional to 4,797 and 7,638

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Solution

The third proportional to 4,797 and 7,638 is: 12,161.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,797 : 7,638 = 7,638 : x
  2. Step 2: Convert to fraction form
    4,797/7,638 = 7,638/x
  3. Step 3: Cross multiply
    4,797x = 7,638 × 7,638
  4. Step 4: Simplify right side
    4,797x = 58,339,044
  5. Step 5: Solve for x
    x = 58,339,044/4,797
  6. Step 6: Final answer
    x = 12,161.57

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.