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Finding the Third Proportional to 2,991.11 and 6,375.19

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Solution

The third proportional to 2,991.11 and 6,375.19 is: 13,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.11 : 6,375.19 = 6,375.19 : x
  2. Step 2: Convert to fraction form
    2,991.11/6,375.19 = 6,375.19/x
  3. Step 3: Cross multiply
    2,991.11x = 6,375.19 × 6,375.19
  4. Step 4: Simplify right side
    2,991.11x = 40,643,053.01
  5. Step 5: Solve for x
    x = 40,643,053.01/2,991.11
  6. Step 6: Final answer
    x = 13,587.96

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.