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Finding the Fourth Proportional to 8,791.54, 13,179.31 and 3,241.01

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Solution

The fourth proportional to 8,791.54, 13,179.31 and 3,241.01 is: 4,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.54 : 13,179.31 = 3,241.01 : x
  2. Step 2: Convert to fraction form
    8,791.54/13,179.31 = 3,241.01/x
  3. Step 3: Cross multiply
    8,791.54x = 13,179.31 × 3,241.01
  4. Step 4: Simplify right side
    8,791.54x = 42,714,300.35
  5. Step 5: Solve for x
    x = 42,714,300.35/8,791.54
  6. Step 6: Final answer
    x = 4,858.57

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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.