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Finding the Third Proportional to 7,189 and 9,662

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Solution

The third proportional to 7,189 and 9,662 is: 12,985.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189 : 9,662 = 9,662 : x
  2. Step 2: Convert to fraction form
    7,189/9,662 = 9,662/x
  3. Step 3: Cross multiply
    7,189x = 9,662 × 9,662
  4. Step 4: Simplify right side
    7,189x = 93,354,244
  5. Step 5: Solve for x
    x = 93,354,244/7,189
  6. Step 6: Final answer
    x = 12,985.71

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.