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Finding the Third Proportional to 2,161 and 4,713

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Solution

The third proportional to 2,161 and 4,713 is: 10,278.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161 : 4,713 = 4,713 : x
  2. Step 2: Convert to fraction form
    2,161/4,713 = 4,713/x
  3. Step 3: Cross multiply
    2,161x = 4,713 × 4,713
  4. Step 4: Simplify right side
    2,161x = 22,212,369
  5. Step 5: Solve for x
    x = 22,212,369/2,161
  6. Step 6: Final answer
    x = 10,278.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.