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Finding the Third Proportional to 6,467 and 9,889

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Solution

The third proportional to 6,467 and 9,889 is: 15,121.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,467 : 9,889 = 9,889 : x
  2. Step 2: Convert to fraction form
    6,467/9,889 = 9,889/x
  3. Step 3: Cross multiply
    6,467x = 9,889 × 9,889
  4. Step 4: Simplify right side
    6,467x = 97,792,321
  5. Step 5: Solve for x
    x = 97,792,321/6,467
  6. Step 6: Final answer
    x = 15,121.74

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.