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Finding the Third Proportional to 2,961.56 and 6,367.36

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Solution

The third proportional to 2,961.56 and 6,367.36 is: 13,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.56 : 6,367.36 = 6,367.36 : x
  2. Step 2: Convert to fraction form
    2,961.56/6,367.36 = 6,367.36/x
  3. Step 3: Cross multiply
    2,961.56x = 6,367.36 × 6,367.36
  4. Step 4: Simplify right side
    2,961.56x = 40,543,265.41
  5. Step 5: Solve for x
    x = 40,543,265.41/2,961.56
  6. Step 6: Final answer
    x = 13,689.82

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.