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Finding the Fourth Proportional to 5,589.84, 8,384.49 and 1,890.84

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Solution

The fourth proportional to 5,589.84, 8,384.49 and 1,890.84 is: 2,836.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.84 : 8,384.49 = 1,890.84 : x
  2. Step 2: Convert to fraction form
    5,589.84/8,384.49 = 1,890.84/x
  3. Step 3: Cross multiply
    5,589.84x = 8,384.49 × 1,890.84
  4. Step 4: Simplify right side
    5,589.84x = 15,853,729.07
  5. Step 5: Solve for x
    x = 15,853,729.07/5,589.84
  6. Step 6: Final answer
    x = 2,836.17

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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.