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Finding the Third Proportional to 7,272 and 10,908

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Solution

The third proportional to 7,272 and 10,908 is: 16,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272 : 10,908 = 10,908 : x
  2. Step 2: Convert to fraction form
    7,272/10,908 = 10,908/x
  3. Step 3: Cross multiply
    7,272x = 10,908 × 10,908
  4. Step 4: Simplify right side
    7,272x = 118,984,464
  5. Step 5: Solve for x
    x = 118,984,464/7,272
  6. Step 6: Final answer
    x = 16,362

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.