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Finding the Third Proportional to 3,168 and 7,677

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Solution

The third proportional to 3,168 and 7,677 is: 18,603.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168 : 7,677 = 7,677 : x
  2. Step 2: Convert to fraction form
    3,168/7,677 = 7,677/x
  3. Step 3: Cross multiply
    3,168x = 7,677 × 7,677
  4. Step 4: Simplify right side
    3,168x = 58,936,329
  5. Step 5: Solve for x
    x = 58,936,329/3,168
  6. Step 6: Final answer
    x = 18,603.64

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.