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Finding the Fourth Proportional to 33,198.70, 49,826.40 and 13,491.40

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Solution

The fourth proportional to 33,198.70, 49,826.40 and 13,491.40 is: 20,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,198.70 : 49,826.40 = 13,491.40 : x
  2. Step 2: Convert to fraction form
    33,198.70/49,826.40 = 13,491.40/x
  3. Step 3: Cross multiply
    33,198.70x = 49,826.40 × 13,491.40
  4. Step 4: Simplify right side
    33,198.70x = 672,227,892.96
  5. Step 5: Solve for x
    x = 672,227,892.96/33,198.70
  6. Step 6: Final answer
    x = 20,248.62

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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.