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Finding the Fourth Proportional to 33,559.68, 46,310.88 and 20,138.88

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Solution

The fourth proportional to 33,559.68, 46,310.88 and 20,138.88 is: 27,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,559.68 : 46,310.88 = 20,138.88 : x
  2. Step 2: Convert to fraction form
    33,559.68/46,310.88 = 20,138.88/x
  3. Step 3: Cross multiply
    33,559.68x = 46,310.88 × 20,138.88
  4. Step 4: Simplify right side
    33,559.68x = 932,649,255.01
  5. Step 5: Solve for x
    x = 932,649,255.01/33,559.68
  6. Step 6: Final answer
    x = 27,790.77

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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.