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Finding the Third Proportional to 4,749 and 7,893

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Solution

The third proportional to 4,749 and 7,893 is: 13,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,749 : 7,893 = 7,893 : x
  2. Step 2: Convert to fraction form
    4,749/7,893 = 7,893/x
  3. Step 3: Cross multiply
    4,749x = 7,893 × 7,893
  4. Step 4: Simplify right side
    4,749x = 62,299,449
  5. Step 5: Solve for x
    x = 62,299,449/4,749
  6. Step 6: Final answer
    x = 13,118.44

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.