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Finding the Third Proportional to 8,907 and 9,867

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Solution

The third proportional to 8,907 and 9,867 is: 10,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907 : 9,867 = 9,867 : x
  2. Step 2: Convert to fraction form
    8,907/9,867 = 9,867/x
  3. Step 3: Cross multiply
    8,907x = 9,867 × 9,867
  4. Step 4: Simplify right side
    8,907x = 97,357,689
  5. Step 5: Solve for x
    x = 97,357,689/8,907
  6. Step 6: Final answer
    x = 10,930.47

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.