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Finding the Fourth Proportional to 5,589.14, 8,384.79 and 1,891.97

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Solution

The fourth proportional to 5,589.14, 8,384.79 and 1,891.97 is: 2,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.14 : 8,384.79 = 1,891.97 : x
  2. Step 2: Convert to fraction form
    5,589.14/8,384.79 = 1,891.97/x
  3. Step 3: Cross multiply
    5,589.14x = 8,384.79 × 1,891.97
  4. Step 4: Simplify right side
    5,589.14x = 15,863,771.14
  5. Step 5: Solve for x
    x = 15,863,771.14/5,589.14
  6. Step 6: Final answer
    x = 2,838.32

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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.