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Finding the Fourth Proportional to 8,922.59, 13,379.73 and 3,992.27

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Solution

The fourth proportional to 8,922.59, 13,379.73 and 3,992.27 is: 5,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.59 : 13,379.73 = 3,992.27 : x
  2. Step 2: Convert to fraction form
    8,922.59/13,379.73 = 3,992.27/x
  3. Step 3: Cross multiply
    8,922.59x = 13,379.73 × 3,992.27
  4. Step 4: Simplify right side
    8,922.59x = 53,415,494.69
  5. Step 5: Solve for x
    x = 53,415,494.69/8,922.59
  6. Step 6: Final answer
    x = 5,986.55

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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.