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Finding the Third Proportional to 5,288 and 7,962

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Solution

The third proportional to 5,288 and 7,962 is: 11,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288 : 7,962 = 7,962 : x
  2. Step 2: Convert to fraction form
    5,288/7,962 = 7,962/x
  3. Step 3: Cross multiply
    5,288x = 7,962 × 7,962
  4. Step 4: Simplify right side
    5,288x = 63,393,444
  5. Step 5: Solve for x
    x = 63,393,444/5,288
  6. Step 6: Final answer
    x = 11,988.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.