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Finding the Third Proportional to 7,200 and 8,192

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Solution

The third proportional to 7,200 and 8,192 is: 9,320.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200 : 8,192 = 8,192 : x
  2. Step 2: Convert to fraction form
    7,200/8,192 = 8,192/x
  3. Step 3: Cross multiply
    7,200x = 8,192 × 8,192
  4. Step 4: Simplify right side
    7,200x = 67,108,864
  5. Step 5: Solve for x
    x = 67,108,864/7,200
  6. Step 6: Final answer
    x = 9,320.68

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These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.