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Finding the Fourth Proportional to 13,716.87, 20,612.22 and 13,310.92

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Solution

The fourth proportional to 13,716.87, 20,612.22 and 13,310.92 is: 20,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716.87 : 20,612.22 = 13,310.92 : x
  2. Step 2: Convert to fraction form
    13,716.87/20,612.22 = 13,310.92/x
  3. Step 3: Cross multiply
    13,716.87x = 20,612.22 × 13,310.92
  4. Step 4: Simplify right side
    13,716.87x = 274,367,611.44
  5. Step 5: Solve for x
    x = 274,367,611.44/13,716.87
  6. Step 6: Final answer
    x = 20,002.20

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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.