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Finding the Fourth Proportional to 33,408.60, 50,112.90 and 33,178.20

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Solution

The fourth proportional to 33,408.60, 50,112.90 and 33,178.20 is: 49,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,408.60 : 50,112.90 = 33,178.20 : x
  2. Step 2: Convert to fraction form
    33,408.60/50,112.90 = 33,178.20/x
  3. Step 3: Cross multiply
    33,408.60x = 50,112.90 × 33,178.20
  4. Step 4: Simplify right side
    33,408.60x = 1,662,655,818.78
  5. Step 5: Solve for x
    x = 1,662,655,818.78/33,408.60
  6. Step 6: Final answer
    x = 49,767.30

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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.