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Finding the Third Proportional to 3,530 and 7,512

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Solution

The third proportional to 3,530 and 7,512 is: 15,985.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530 : 7,512 = 7,512 : x
  2. Step 2: Convert to fraction form
    3,530/7,512 = 7,512/x
  3. Step 3: Cross multiply
    3,530x = 7,512 × 7,512
  4. Step 4: Simplify right side
    3,530x = 56,430,144
  5. Step 5: Solve for x
    x = 56,430,144/3,530
  6. Step 6: Final answer
    x = 15,985.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.