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Finding the Fourth Proportional to 33,091.20, 49,636.80 and 19,045.80

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Solution

The fourth proportional to 33,091.20, 49,636.80 and 19,045.80 is: 28,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,091.20 : 49,636.80 = 19,045.80 : x
  2. Step 2: Convert to fraction form
    33,091.20/49,636.80 = 19,045.80/x
  3. Step 3: Cross multiply
    33,091.20x = 49,636.80 × 19,045.80
  4. Step 4: Simplify right side
    33,091.20x = 945,372,565.44
  5. Step 5: Solve for x
    x = 945,372,565.44/33,091.20
  6. Step 6: Final answer
    x = 28,568.70

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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.