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Finding the Third Proportional to 2,196 and 5,163.75

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Solution

The third proportional to 2,196 and 5,163.75 is: 12,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196 : 5,163.75 = 5,163.75 : x
  2. Step 2: Convert to fraction form
    2,196/5,163.75 = 5,163.75/x
  3. Step 3: Cross multiply
    2,196x = 5,163.75 × 5,163.75
  4. Step 4: Simplify right side
    2,196x = 26,664,314.06
  5. Step 5: Solve for x
    x = 26,664,314.06/2,196
  6. Step 6: Final answer
    x = 12,142.22

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.