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Finding the Third Proportional to 6,622 and 9,907

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Solution

The third proportional to 6,622 and 9,907 is: 14,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622 : 9,907 = 9,907 : x
  2. Step 2: Convert to fraction form
    6,622/9,907 = 9,907/x
  3. Step 3: Cross multiply
    6,622x = 9,907 × 9,907
  4. Step 4: Simplify right side
    6,622x = 98,148,649
  5. Step 5: Solve for x
    x = 98,148,649/6,622
  6. Step 6: Final answer
    x = 14,821.60

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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.