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Finding the Third Proportional to 13,163.77 and 19,743.75

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Solution

The third proportional to 13,163.77 and 19,743.75 is: 29,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,163.77 : 19,743.75 = 19,743.75 : x
  2. Step 2: Convert to fraction form
    13,163.77/19,743.75 = 19,743.75/x
  3. Step 3: Cross multiply
    13,163.77x = 19,743.75 × 19,743.75
  4. Step 4: Simplify right side
    13,163.77x = 389,815,664.06
  5. Step 5: Solve for x
    x = 389,815,664.06/13,163.77
  6. Step 6: Final answer
    x = 29,612.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.