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Finding the Third Proportional to 3,656.39 and 7,768.41

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Solution

The third proportional to 3,656.39 and 7,768.41 is: 16,504.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,656.39 : 7,768.41 = 7,768.41 : x
  2. Step 2: Convert to fraction form
    3,656.39/7,768.41 = 7,768.41/x
  3. Step 3: Cross multiply
    3,656.39x = 7,768.41 × 7,768.41
  4. Step 4: Simplify right side
    3,656.39x = 60,348,135.67
  5. Step 5: Solve for x
    x = 60,348,135.67/3,656.39
  6. Step 6: Final answer
    x = 16,504.84

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.