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Finding the Fourth Proportional to 5,919.68, 8,879.52 and 1,759.67

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Solution

The fourth proportional to 5,919.68, 8,879.52 and 1,759.67 is: 2,639.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.68 : 8,879.52 = 1,759.67 : x
  2. Step 2: Convert to fraction form
    5,919.68/8,879.52 = 1,759.67/x
  3. Step 3: Cross multiply
    5,919.68x = 8,879.52 × 1,759.67
  4. Step 4: Simplify right side
    5,919.68x = 15,625,016.16
  5. Step 5: Solve for x
    x = 15,625,016.16/5,919.68
  6. Step 6: Final answer
    x = 2,639.51

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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.