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Finding the Third Proportional to 4,518 and 9,692

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Solution

The third proportional to 4,518 and 9,692 is: 20,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518 : 9,692 = 9,692 : x
  2. Step 2: Convert to fraction form
    4,518/9,692 = 9,692/x
  3. Step 3: Cross multiply
    4,518x = 9,692 × 9,692
  4. Step 4: Simplify right side
    4,518x = 93,934,864
  5. Step 5: Solve for x
    x = 93,934,864/4,518
  6. Step 6: Final answer
    x = 20,791.25

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.