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Finding the Third Proportional to 7,494 and 8,118

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Solution

The third proportional to 7,494 and 8,118 is: 8,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,494 : 8,118 = 8,118 : x
  2. Step 2: Convert to fraction form
    7,494/8,118 = 8,118/x
  3. Step 3: Cross multiply
    7,494x = 8,118 × 8,118
  4. Step 4: Simplify right side
    7,494x = 65,901,924
  5. Step 5: Solve for x
    x = 65,901,924/7,494
  6. Step 6: Final answer
    x = 8,793.96

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.