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Finding the Third Proportional to 2,865.38 and 6,216.75

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Solution

The third proportional to 2,865.38 and 6,216.75 is: 13,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.38 : 6,216.75 = 6,216.75 : x
  2. Step 2: Convert to fraction form
    2,865.38/6,216.75 = 6,216.75/x
  3. Step 3: Cross multiply
    2,865.38x = 6,216.75 × 6,216.75
  4. Step 4: Simplify right side
    2,865.38x = 38,647,980.56
  5. Step 5: Solve for x
    x = 38,647,980.56/2,865.38
  6. Step 6: Final answer
    x = 13,487.93

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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.