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Finding the Third Proportional to 7,272 and 9,671

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Solution

The third proportional to 7,272 and 9,671 is: 12,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272 : 9,671 = 9,671 : x
  2. Step 2: Convert to fraction form
    7,272/9,671 = 9,671/x
  3. Step 3: Cross multiply
    7,272x = 9,671 × 9,671
  4. Step 4: Simplify right side
    7,272x = 93,528,241
  5. Step 5: Solve for x
    x = 93,528,241/7,272
  6. Step 6: Final answer
    x = 12,861.42

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.