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Finding the Fourth Proportional to 17,078.88, 25,585.38 and 9,660.64

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Solution

The fourth proportional to 17,078.88, 25,585.38 and 9,660.64 is: 14,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,078.88 : 25,585.38 = 9,660.64 : x
  2. Step 2: Convert to fraction form
    17,078.88/25,585.38 = 9,660.64/x
  3. Step 3: Cross multiply
    17,078.88x = 25,585.38 × 9,660.64
  4. Step 4: Simplify right side
    17,078.88x = 247,171,145.44
  5. Step 5: Solve for x
    x = 247,171,145.44/17,078.88
  6. Step 6: Final answer
    x = 14,472.33

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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.