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Finding the Third Proportional to 9,947.25 and 20,907

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Solution

The third proportional to 9,947.25 and 20,907 is: 43,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,947.25 : 20,907 = 20,907 : x
  2. Step 2: Convert to fraction form
    9,947.25/20,907 = 20,907/x
  3. Step 3: Cross multiply
    9,947.25x = 20,907 × 20,907
  4. Step 4: Simplify right side
    9,947.25x = 437,102,649
  5. Step 5: Solve for x
    x = 437,102,649/9,947.25
  6. Step 6: Final answer
    x = 43,942.06

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.