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Finding the Third Proportional to 3,667.78 and 4,763.81

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Solution

The third proportional to 3,667.78 and 4,763.81 is: 6,187.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,667.78 : 4,763.81 = 4,763.81 : x
  2. Step 2: Convert to fraction form
    3,667.78/4,763.81 = 4,763.81/x
  3. Step 3: Cross multiply
    3,667.78x = 4,763.81 × 4,763.81
  4. Step 4: Simplify right side
    3,667.78x = 22,693,909.54
  5. Step 5: Solve for x
    x = 22,693,909.54/3,667.78
  6. Step 6: Final answer
    x = 6,187.37

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.