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Finding the Third Proportional to 5,288 and 7,656

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Solution

The third proportional to 5,288 and 7,656 is: 11,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288 : 7,656 = 7,656 : x
  2. Step 2: Convert to fraction form
    5,288/7,656 = 7,656/x
  3. Step 3: Cross multiply
    5,288x = 7,656 × 7,656
  4. Step 4: Simplify right side
    5,288x = 58,614,336
  5. Step 5: Solve for x
    x = 58,614,336/5,288
  6. Step 6: Final answer
    x = 11,084.41

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.