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Finding the Third Proportional to 3,530 and 7,697

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Solution

The third proportional to 3,530 and 7,697 is: 16,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530 : 7,697 = 7,697 : x
  2. Step 2: Convert to fraction form
    3,530/7,697 = 7,697/x
  3. Step 3: Cross multiply
    3,530x = 7,697 × 7,697
  4. Step 4: Simplify right side
    3,530x = 59,243,809
  5. Step 5: Solve for x
    x = 59,243,809/3,530
  6. Step 6: Final answer
    x = 16,782.95

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.