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Finding the Fourth Proportional to 33,661.20, 50,494.20 and 10,287.60

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Solution

The fourth proportional to 33,661.20, 50,494.20 and 10,287.60 is: 15,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,661.20 : 50,494.20 = 10,287.60 : x
  2. Step 2: Convert to fraction form
    33,661.20/50,494.20 = 10,287.60/x
  3. Step 3: Cross multiply
    33,661.20x = 50,494.20 × 10,287.60
  4. Step 4: Simplify right side
    33,661.20x = 519,464,131.92
  5. Step 5: Solve for x
    x = 519,464,131.92/33,661.20
  6. Step 6: Final answer
    x = 15,432.13

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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.