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Finding the Fourth Proportional to 33,369.80, 50,039.94 and 9,991.88

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Solution

The fourth proportional to 33,369.80, 50,039.94 and 9,991.88 is: 14,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,369.80 : 50,039.94 = 9,991.88 : x
  2. Step 2: Convert to fraction form
    33,369.80/50,039.94 = 9,991.88/x
  3. Step 3: Cross multiply
    33,369.80x = 50,039.94 × 9,991.88
  4. Step 4: Simplify right side
    33,369.80x = 499,993,075.69
  5. Step 5: Solve for x
    x = 499,993,075.69/33,369.80
  6. Step 6: Final answer
    x = 14,983.40

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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.