Home / 33,186.87-49,778.69-12,408.75

Finding the Fourth Proportional to 33,186.87, 49,778.69 and 12,408.75

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Solution

The fourth proportional to 33,186.87, 49,778.69 and 12,408.75 is: 18,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,186.87 : 49,778.69 = 12,408.75 : x
  2. Step 2: Convert to fraction form
    33,186.87/49,778.69 = 12,408.75/x
  3. Step 3: Cross multiply
    33,186.87x = 49,778.69 × 12,408.75
  4. Step 4: Simplify right side
    33,186.87x = 617,691,257.49
  5. Step 5: Solve for x
    x = 617,691,257.49/33,186.87
  6. Step 6: Final answer
    x = 18,612.52

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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.