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Finding the Fourth Proportional to 9,067.60, 13,601.40 and 5,611.60

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Solution

The fourth proportional to 9,067.60, 13,601.40 and 5,611.60 is: 8,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,067.60 : 13,601.40 = 5,611.60 : x
  2. Step 2: Convert to fraction form
    9,067.60/13,601.40 = 5,611.60/x
  3. Step 3: Cross multiply
    9,067.60x = 13,601.40 × 5,611.60
  4. Step 4: Simplify right side
    9,067.60x = 76,325,616.24
  5. Step 5: Solve for x
    x = 76,325,616.24/9,067.60
  6. Step 6: Final answer
    x = 8,417.40

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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.