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Finding the Fourth Proportional to 5,608.43, 8,403.06 and 3,961.80

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Solution

The fourth proportional to 5,608.43, 8,403.06 and 3,961.80 is: 5,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.43 : 8,403.06 = 3,961.80 : x
  2. Step 2: Convert to fraction form
    5,608.43/8,403.06 = 3,961.80/x
  3. Step 3: Cross multiply
    5,608.43x = 8,403.06 × 3,961.80
  4. Step 4: Simplify right side
    5,608.43x = 33,291,201.09
  5. Step 5: Solve for x
    x = 33,291,201.09/5,608.43
  6. Step 6: Final answer
    x = 5,935.93

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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.