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Finding the Fourth Proportional to 5,791.79, 8,699.32 and 3,456.36

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Solution

The fourth proportional to 5,791.79, 8,699.32 and 3,456.36 is: 5,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,791.79 : 8,699.32 = 3,456.36 : x
  2. Step 2: Convert to fraction form
    5,791.79/8,699.32 = 3,456.36/x
  3. Step 3: Cross multiply
    5,791.79x = 8,699.32 × 3,456.36
  4. Step 4: Simplify right side
    5,791.79x = 30,067,981.68
  5. Step 5: Solve for x
    x = 30,067,981.68/5,791.79
  6. Step 6: Final answer
    x = 5,191.48

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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.