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Finding the Fourth Proportional to 36,706.56, 50,651.40 and 20,787.84

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Solution

The fourth proportional to 36,706.56, 50,651.40 and 20,787.84 is: 28,685.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,706.56 : 50,651.40 = 20,787.84 : x
  2. Step 2: Convert to fraction form
    36,706.56/50,651.40 = 20,787.84/x
  3. Step 3: Cross multiply
    36,706.56x = 50,651.40 × 20,787.84
  4. Step 4: Simplify right side
    36,706.56x = 1,052,933,198.98
  5. Step 5: Solve for x
    x = 1,052,933,198.98/36,706.56
  6. Step 6: Final answer
    x = 28,685.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.