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Finding the Third Proportional to 3,996 and 5,251.50

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Solution

The third proportional to 3,996 and 5,251.50 is: 6,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996 : 5,251.50 = 5,251.50 : x
  2. Step 2: Convert to fraction form
    3,996/5,251.50 = 5,251.50/x
  3. Step 3: Cross multiply
    3,996x = 5,251.50 × 5,251.50
  4. Step 4: Simplify right side
    3,996x = 27,578,252.25
  5. Step 5: Solve for x
    x = 27,578,252.25/3,996
  6. Step 6: Final answer
    x = 6,901.46

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.