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Finding the Third Proportional to 3,790.13 and 8,305.31

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Solution

The third proportional to 3,790.13 and 8,305.31 is: 18,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.13 : 8,305.31 = 8,305.31 : x
  2. Step 2: Convert to fraction form
    3,790.13/8,305.31 = 8,305.31/x
  3. Step 3: Cross multiply
    3,790.13x = 8,305.31 × 8,305.31
  4. Step 4: Simplify right side
    3,790.13x = 68,978,215.72
  5. Step 5: Solve for x
    x = 68,978,215.72/3,790.13
  6. Step 6: Final answer
    x = 18,199.46

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.