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Finding the Fourth Proportional to 33,783.95, 50,606.74 and 18,961.74

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Solution

The fourth proportional to 33,783.95, 50,606.74 and 18,961.74 is: 28,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,783.95 : 50,606.74 = 18,961.74 : x
  2. Step 2: Convert to fraction form
    33,783.95/50,606.74 = 18,961.74/x
  3. Step 3: Cross multiply
    33,783.95x = 50,606.74 × 18,961.74
  4. Step 4: Simplify right side
    33,783.95x = 959,591,846.13
  5. Step 5: Solve for x
    x = 959,591,846.13/33,783.95
  6. Step 6: Final answer
    x = 28,403.78

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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.