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Finding the Third Proportional to 3,778.88 and 8,132.63

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Solution

The third proportional to 3,778.88 and 8,132.63 is: 17,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.88 : 8,132.63 = 8,132.63 : x
  2. Step 2: Convert to fraction form
    3,778.88/8,132.63 = 8,132.63/x
  3. Step 3: Cross multiply
    3,778.88x = 8,132.63 × 8,132.63
  4. Step 4: Simplify right side
    3,778.88x = 66,139,589.39
  5. Step 5: Solve for x
    x = 66,139,589.39/3,778.88
  6. Step 6: Final answer
    x = 17,502.45

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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.