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Finding the Third Proportional to 8,272 and 13,928

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Solution

The third proportional to 8,272 and 13,928 is: 23,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272 : 13,928 = 13,928 : x
  2. Step 2: Convert to fraction form
    8,272/13,928 = 13,928/x
  3. Step 3: Cross multiply
    8,272x = 13,928 × 13,928
  4. Step 4: Simplify right side
    8,272x = 193,989,184
  5. Step 5: Solve for x
    x = 193,989,184/8,272
  6. Step 6: Final answer
    x = 23,451.30

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.