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Finding the Fourth Proportional to 5,491.47, 8,238.52 and 1,793.71

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Solution

The fourth proportional to 5,491.47, 8,238.52 and 1,793.71 is: 2,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.47 : 8,238.52 = 1,793.71 : x
  2. Step 2: Convert to fraction form
    5,491.47/8,238.52 = 1,793.71/x
  3. Step 3: Cross multiply
    5,491.47x = 8,238.52 × 1,793.71
  4. Step 4: Simplify right side
    5,491.47x = 14,777,515.71
  5. Step 5: Solve for x
    x = 14,777,515.71/5,491.47
  6. Step 6: Final answer
    x = 2,690.99

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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.