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Finding the Fourth Proportional to 3,059.62, 4,589.04 and 979.84

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Solution

The fourth proportional to 3,059.62, 4,589.04 and 979.84 is: 1,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.62 : 4,589.04 = 979.84 : x
  2. Step 2: Convert to fraction form
    3,059.62/4,589.04 = 979.84/x
  3. Step 3: Cross multiply
    3,059.62x = 4,589.04 × 979.84
  4. Step 4: Simplify right side
    3,059.62x = 4,496,524.95
  5. Step 5: Solve for x
    x = 4,496,524.95/3,059.62
  6. Step 6: Final answer
    x = 1,469.64

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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.