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Finding the Fourth Proportional to 61,928.94, 85,469.22 and 36,778.44

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Solution

The fourth proportional to 61,928.94, 85,469.22 and 36,778.44 is: 50,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,928.94 : 85,469.22 = 36,778.44 : x
  2. Step 2: Convert to fraction form
    61,928.94/85,469.22 = 36,778.44/x
  3. Step 3: Cross multiply
    61,928.94x = 85,469.22 × 36,778.44
  4. Step 4: Simplify right side
    61,928.94x = 3,143,424,579.62
  5. Step 5: Solve for x
    x = 3,143,424,579.62/61,928.94
  6. Step 6: Final answer
    x = 50,758.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.