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Finding the Third Proportional to 2,122 and 4,313

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Solution

The third proportional to 2,122 and 4,313 is: 8,766.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122 : 4,313 = 4,313 : x
  2. Step 2: Convert to fraction form
    2,122/4,313 = 4,313/x
  3. Step 3: Cross multiply
    2,122x = 4,313 × 4,313
  4. Step 4: Simplify right side
    2,122x = 18,601,969
  5. Step 5: Solve for x
    x = 18,601,969/2,122
  6. Step 6: Final answer
    x = 8,766.24

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.