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Finding the Fourth Proportional to 2,674.62, 4,012.74 and 1,578.29

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Solution

The fourth proportional to 2,674.62, 4,012.74 and 1,578.29 is: 2,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.62 : 4,012.74 = 1,578.29 : x
  2. Step 2: Convert to fraction form
    2,674.62/4,012.74 = 1,578.29/x
  3. Step 3: Cross multiply
    2,674.62x = 4,012.74 × 1,578.29
  4. Step 4: Simplify right side
    2,674.62x = 6,333,247.35
  5. Step 5: Solve for x
    x = 6,333,247.35/2,674.62
  6. Step 6: Final answer
    x = 2,367.91

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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.