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Finding the Fourth Proportional to 33,395.78, 50,119.05 and 12,355.72

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Solution

The fourth proportional to 33,395.78, 50,119.05 and 12,355.72 is: 18,542.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,395.78 : 50,119.05 = 12,355.72 : x
  2. Step 2: Convert to fraction form
    33,395.78/50,119.05 = 12,355.72/x
  3. Step 3: Cross multiply
    33,395.78x = 50,119.05 × 12,355.72
  4. Step 4: Simplify right side
    33,395.78x = 619,256,697.87
  5. Step 5: Solve for x
    x = 619,256,697.87/33,395.78
  6. Step 6: Final answer
    x = 18,542.96

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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.