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Finding the Fourth Proportional to 33,405.80, 50,108.70 and 30,392.60

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Solution

The fourth proportional to 33,405.80, 50,108.70 and 30,392.60 is: 45,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,405.80 : 50,108.70 = 30,392.60 : x
  2. Step 2: Convert to fraction form
    33,405.80/50,108.70 = 30,392.60/x
  3. Step 3: Cross multiply
    33,405.80x = 50,108.70 × 30,392.60
  4. Step 4: Simplify right side
    33,405.80x = 1,522,933,675.62
  5. Step 5: Solve for x
    x = 1,522,933,675.62/33,405.80
  6. Step 6: Final answer
    x = 45,588.90

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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.