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Finding the Fourth Proportional to 3,841.74, 5,763.15 and 1,893.96

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Solution

The fourth proportional to 3,841.74, 5,763.15 and 1,893.96 is: 2,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.74 : 5,763.15 = 1,893.96 : x
  2. Step 2: Convert to fraction form
    3,841.74/5,763.15 = 1,893.96/x
  3. Step 3: Cross multiply
    3,841.74x = 5,763.15 × 1,893.96
  4. Step 4: Simplify right side
    3,841.74x = 10,915,175.57
  5. Step 5: Solve for x
    x = 10,915,175.57/3,841.74
  6. Step 6: Final answer
    x = 2,841.21

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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.