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Finding the Fourth Proportional to 6,270.80, 9,406.20 and 4,067.60

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Solution

The fourth proportional to 6,270.80, 9,406.20 and 4,067.60 is: 6,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.80 : 9,406.20 = 4,067.60 : x
  2. Step 2: Convert to fraction form
    6,270.80/9,406.20 = 4,067.60/x
  3. Step 3: Cross multiply
    6,270.80x = 9,406.20 × 4,067.60
  4. Step 4: Simplify right side
    6,270.80x = 38,260,659.12
  5. Step 5: Solve for x
    x = 38,260,659.12/6,270.80
  6. Step 6: Final answer
    x = 6,101.40

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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.