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Finding the Fourth Proportional to 8,850.67, 13,267.80 and 3,917.68

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Solution

The fourth proportional to 8,850.67, 13,267.80 and 3,917.68 is: 5,872.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.67 : 13,267.80 = 3,917.68 : x
  2. Step 2: Convert to fraction form
    8,850.67/13,267.80 = 3,917.68/x
  3. Step 3: Cross multiply
    8,850.67x = 13,267.80 × 3,917.68
  4. Step 4: Simplify right side
    8,850.67x = 51,978,994.70
  5. Step 5: Solve for x
    x = 51,978,994.70/8,850.67
  6. Step 6: Final answer
    x = 5,872.89

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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.