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Finding the Fourth Proportional to 5,584.86, 8,364.52 and 2,665.21

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Solution

The fourth proportional to 5,584.86, 8,364.52 and 2,665.21 is: 3,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,584.86 : 8,364.52 = 2,665.21 : x
  2. Step 2: Convert to fraction form
    5,584.86/8,364.52 = 2,665.21/x
  3. Step 3: Cross multiply
    5,584.86x = 8,364.52 × 2,665.21
  4. Step 4: Simplify right side
    5,584.86x = 22,293,216.14
  5. Step 5: Solve for x
    x = 22,293,216.14/5,584.86
  6. Step 6: Final answer
    x = 3,991.73

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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.