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Finding the Fourth Proportional to 5,991.69, 8,974.45 and 4,939.88

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Solution

The fourth proportional to 5,991.69, 8,974.45 and 4,939.88 is: 7,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.69 : 8,974.45 = 4,939.88 : x
  2. Step 2: Convert to fraction form
    5,991.69/8,974.45 = 4,939.88/x
  3. Step 3: Cross multiply
    5,991.69x = 8,974.45 × 4,939.88
  4. Step 4: Simplify right side
    5,991.69x = 44,332,636.49
  5. Step 5: Solve for x
    x = 44,332,636.49/5,991.69
  6. Step 6: Final answer
    x = 7,399.03

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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.