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Finding the Third Proportional to 2,022 and 4,380

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Solution

The third proportional to 2,022 and 4,380 is: 9,487.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022 : 4,380 = 4,380 : x
  2. Step 2: Convert to fraction form
    2,022/4,380 = 4,380/x
  3. Step 3: Cross multiply
    2,022x = 4,380 × 4,380
  4. Step 4: Simplify right side
    2,022x = 19,184,400
  5. Step 5: Solve for x
    x = 19,184,400/2,022
  6. Step 6: Final answer
    x = 9,487.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.