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Finding the Fourth Proportional to 33,361.92, 50,042.70 and 13,380.30

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Solution

The fourth proportional to 33,361.92, 50,042.70 and 13,380.30 is: 20,070.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,361.92 : 50,042.70 = 13,380.30 : x
  2. Step 2: Convert to fraction form
    33,361.92/50,042.70 = 13,380.30/x
  3. Step 3: Cross multiply
    33,361.92x = 50,042.70 × 13,380.30
  4. Step 4: Simplify right side
    33,361.92x = 669,586,338.81
  5. Step 5: Solve for x
    x = 669,586,338.81/33,361.92
  6. Step 6: Final answer
    x = 20,070.38

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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.