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Finding the Third Proportional to 2,991.94 and 6,462.28

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Solution

The third proportional to 2,991.94 and 6,462.28 is: 13,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.94 : 6,462.28 = 6,462.28 : x
  2. Step 2: Convert to fraction form
    2,991.94/6,462.28 = 6,462.28/x
  3. Step 3: Cross multiply
    2,991.94x = 6,462.28 × 6,462.28
  4. Step 4: Simplify right side
    2,991.94x = 41,761,078.95
  5. Step 5: Solve for x
    x = 41,761,078.95/2,991.94
  6. Step 6: Final answer
    x = 13,957.87

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.