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Finding the Fourth Proportional to 11,702.45, 17,550.03 and 5,855.87

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Solution

The fourth proportional to 11,702.45, 17,550.03 and 5,855.87 is: 8,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,702.45 : 17,550.03 = 5,855.87 : x
  2. Step 2: Convert to fraction form
    11,702.45/17,550.03 = 5,855.87/x
  3. Step 3: Cross multiply
    11,702.45x = 17,550.03 × 5,855.87
  4. Step 4: Simplify right side
    11,702.45x = 102,770,694.18
  5. Step 5: Solve for x
    x = 102,770,694.18/11,702.45
  6. Step 6: Final answer
    x = 8,781.98

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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.