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Finding the Fourth Proportional to 11,391.96, 17,079.87 and 5,063.37

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Solution

The fourth proportional to 11,391.96, 17,079.87 and 5,063.37 is: 7,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.96 : 17,079.87 = 5,063.37 : x
  2. Step 2: Convert to fraction form
    11,391.96/17,079.87 = 5,063.37/x
  3. Step 3: Cross multiply
    11,391.96x = 17,079.87 × 5,063.37
  4. Step 4: Simplify right side
    11,391.96x = 86,481,701.36
  5. Step 5: Solve for x
    x = 86,481,701.36/11,391.96
  6. Step 6: Final answer
    x = 7,591.47

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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.