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Finding the Fourth Proportional to 28,794.87, 39,723.34 and 16,850.88

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Solution

The fourth proportional to 28,794.87, 39,723.34 and 16,850.88 is: 23,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,794.87 : 39,723.34 = 16,850.88 : x
  2. Step 2: Convert to fraction form
    28,794.87/39,723.34 = 16,850.88/x
  3. Step 3: Cross multiply
    28,794.87x = 39,723.34 × 16,850.88
  4. Step 4: Simplify right side
    28,794.87x = 669,373,235.54
  5. Step 5: Solve for x
    x = 669,373,235.54/28,794.87
  6. Step 6: Final answer
    x = 23,246.27

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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.