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Finding the Fourth Proportional to 33,561.60, 50,349.60 and 10,190.40

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Solution

The fourth proportional to 33,561.60, 50,349.60 and 10,190.40 is: 15,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,561.60 : 50,349.60 = 10,190.40 : x
  2. Step 2: Convert to fraction form
    33,561.60/50,349.60 = 10,190.40/x
  3. Step 3: Cross multiply
    33,561.60x = 50,349.60 × 10,190.40
  4. Step 4: Simplify right side
    33,561.60x = 513,082,563.84
  5. Step 5: Solve for x
    x = 513,082,563.84/33,561.60
  6. Step 6: Final answer
    x = 15,287.79

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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.