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Finding the Fourth Proportional to 49,737.70, 68,617.69 and 30,611.70

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Solution

The fourth proportional to 49,737.70, 68,617.69 and 30,611.70 is: 42,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,737.70 : 68,617.69 = 30,611.70 : x
  2. Step 2: Convert to fraction form
    49,737.70/68,617.69 = 30,611.70/x
  3. Step 3: Cross multiply
    49,737.70x = 68,617.69 × 30,611.70
  4. Step 4: Simplify right side
    49,737.70x = 2,100,504,086.70
  5. Step 5: Solve for x
    x = 2,100,504,086.70/49,737.70
  6. Step 6: Final answer
    x = 42,231.63

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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.