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Finding the Third Proportional to 6,928 and 8,000

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Solution

The third proportional to 6,928 and 8,000 is: 9,237.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928 : 8,000 = 8,000 : x
  2. Step 2: Convert to fraction form
    6,928/8,000 = 8,000/x
  3. Step 3: Cross multiply
    6,928x = 8,000 × 8,000
  4. Step 4: Simplify right side
    6,928x = 64,000,000
  5. Step 5: Solve for x
    x = 64,000,000/6,928
  6. Step 6: Final answer
    x = 9,237.88

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.