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Finding the Fourth Proportional to 13,367.70, 20,049.84 and 3,506.94

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Solution

The fourth proportional to 13,367.70, 20,049.84 and 3,506.94 is: 5,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.70 : 20,049.84 = 3,506.94 : x
  2. Step 2: Convert to fraction form
    13,367.70/20,049.84 = 3,506.94/x
  3. Step 3: Cross multiply
    13,367.70x = 20,049.84 × 3,506.94
  4. Step 4: Simplify right side
    13,367.70x = 70,313,585.89
  5. Step 5: Solve for x
    x = 70,313,585.89/13,367.70
  6. Step 6: Final answer
    x = 5,259.96

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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.