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Finding the Third Proportional to 7,922.81 and 11,942.44

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Solution

The third proportional to 7,922.81 and 11,942.44 is: 18,001.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.81 : 11,942.44 = 11,942.44 : x
  2. Step 2: Convert to fraction form
    7,922.81/11,942.44 = 11,942.44/x
  3. Step 3: Cross multiply
    7,922.81x = 11,942.44 × 11,942.44
  4. Step 4: Simplify right side
    7,922.81x = 142,621,813.44
  5. Step 5: Solve for x
    x = 142,621,813.44/7,922.81
  6. Step 6: Final answer
    x = 18,001.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.