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Finding the Fourth Proportional to 33,993.12, 50,991.12 and 10,620.48

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Solution

The fourth proportional to 33,993.12, 50,991.12 and 10,620.48 is: 15,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,993.12 : 50,991.12 = 10,620.48 : x
  2. Step 2: Convert to fraction form
    33,993.12/50,991.12 = 10,620.48/x
  3. Step 3: Cross multiply
    33,993.12x = 50,991.12 × 10,620.48
  4. Step 4: Simplify right side
    33,993.12x = 541,550,170.14
  5. Step 5: Solve for x
    x = 541,550,170.14/33,993.12
  6. Step 6: Final answer
    x = 15,931.17

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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.