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Finding the Third Proportional to 7,184 and 8,272

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Solution

The third proportional to 7,184 and 8,272 is: 9,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184 : 8,272 = 8,272 : x
  2. Step 2: Convert to fraction form
    7,184/8,272 = 8,272/x
  3. Step 3: Cross multiply
    7,184x = 8,272 × 8,272
  4. Step 4: Simplify right side
    7,184x = 68,425,984
  5. Step 5: Solve for x
    x = 68,425,984/7,184
  6. Step 6: Final answer
    x = 9,524.78

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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.