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Finding the Fourth Proportional to 3,862.15, 5,793.22 and 1,396.39

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Solution

The fourth proportional to 3,862.15, 5,793.22 and 1,396.39 is: 2,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.15 : 5,793.22 = 1,396.39 : x
  2. Step 2: Convert to fraction form
    3,862.15/5,793.22 = 1,396.39/x
  3. Step 3: Cross multiply
    3,862.15x = 5,793.22 × 1,396.39
  4. Step 4: Simplify right side
    3,862.15x = 8,089,599.56
  5. Step 5: Solve for x
    x = 8,089,599.56/3,862.15
  6. Step 6: Final answer
    x = 2,094.59

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1.5x scale

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.