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Finding the Fourth Proportional to 13,381.62, 20,053.23 and 11,734.26

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Solution

The fourth proportional to 13,381.62, 20,053.23 and 11,734.26 is: 17,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.62 : 20,053.23 = 11,734.26 : x
  2. Step 2: Convert to fraction form
    13,381.62/20,053.23 = 11,734.26/x
  3. Step 3: Cross multiply
    13,381.62x = 20,053.23 × 11,734.26
  4. Step 4: Simplify right side
    13,381.62x = 235,309,814.66
  5. Step 5: Solve for x
    x = 235,309,814.66/13,381.62
  6. Step 6: Final answer
    x = 17,584.55

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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.