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Finding the Third Proportional to 6,922 and 11,436

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Solution

The third proportional to 6,922 and 11,436 is: 18,893.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,922 : 11,436 = 11,436 : x
  2. Step 2: Convert to fraction form
    6,922/11,436 = 11,436/x
  3. Step 3: Cross multiply
    6,922x = 11,436 × 11,436
  4. Step 4: Simplify right side
    6,922x = 130,782,096
  5. Step 5: Solve for x
    x = 130,782,096/6,922
  6. Step 6: Final answer
    x = 18,893.69

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.