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Finding the Fourth Proportional to 3,802.89, 5,704.31 and 1,029.85

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Solution

The fourth proportional to 3,802.89, 5,704.31 and 1,029.85 is: 1,544.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,802.89 : 5,704.31 = 1,029.85 : x
  2. Step 2: Convert to fraction form
    3,802.89/5,704.31 = 1,029.85/x
  3. Step 3: Cross multiply
    3,802.89x = 5,704.31 × 1,029.85
  4. Step 4: Simplify right side
    3,802.89x = 5,874,583.65
  5. Step 5: Solve for x
    x = 5,874,583.65/3,802.89
  6. Step 6: Final answer
    x = 1,544.77

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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.