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Finding the Fourth Proportional to 17,067.60, 25,601.40 and 8,319.60

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Solution

The fourth proportional to 17,067.60, 25,601.40 and 8,319.60 is: 12,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,067.60 : 25,601.40 = 8,319.60 : x
  2. Step 2: Convert to fraction form
    17,067.60/25,601.40 = 8,319.60/x
  3. Step 3: Cross multiply
    17,067.60x = 25,601.40 × 8,319.60
  4. Step 4: Simplify right side
    17,067.60x = 212,993,407.44
  5. Step 5: Solve for x
    x = 212,993,407.44/17,067.60
  6. Step 6: Final answer
    x = 12,479.40

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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.