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Finding the Fourth Proportional to 2,594.44, 3,891.69 and 863.06

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Solution

The fourth proportional to 2,594.44, 3,891.69 and 863.06 is: 1,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,594.44 : 3,891.69 = 863.06 : x
  2. Step 2: Convert to fraction form
    2,594.44/3,891.69 = 863.06/x
  3. Step 3: Cross multiply
    2,594.44x = 3,891.69 × 863.06
  4. Step 4: Simplify right side
    2,594.44x = 3,358,771.70
  5. Step 5: Solve for x
    x = 3,358,771.70/2,594.44
  6. Step 6: Final answer
    x = 1,294.60

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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.