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Finding the Fourth Proportional to 6,245.60, 9,367.20 and 1,863.20

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Solution

The fourth proportional to 6,245.60, 9,367.20 and 1,863.20 is: 2,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.60 : 9,367.20 = 1,863.20 : x
  2. Step 2: Convert to fraction form
    6,245.60/9,367.20 = 1,863.20/x
  3. Step 3: Cross multiply
    6,245.60x = 9,367.20 × 1,863.20
  4. Step 4: Simplify right side
    6,245.60x = 17,452,967.04
  5. Step 5: Solve for x
    x = 17,452,967.04/6,245.60
  6. Step 6: Final answer
    x = 2,794.44

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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.