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Finding the Fourth Proportional to 3,963.59, 5,939.88 and 3,845.33

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Solution

The fourth proportional to 3,963.59, 5,939.88 and 3,845.33 is: 5,762.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.59 : 5,939.88 = 3,845.33 : x
  2. Step 2: Convert to fraction form
    3,963.59/5,939.88 = 3,845.33/x
  3. Step 3: Cross multiply
    3,963.59x = 5,939.88 × 3,845.33
  4. Step 4: Simplify right side
    3,963.59x = 22,840,798.76
  5. Step 5: Solve for x
    x = 22,840,798.76/3,963.59
  6. Step 6: Final answer
    x = 5,762.65

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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.