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Finding the Fourth Proportional to 18,494.27, 27,741.60 and 5,346.75

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Solution

The fourth proportional to 18,494.27, 27,741.60 and 5,346.75 is: 8,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.27 : 27,741.60 = 5,346.75 : x
  2. Step 2: Convert to fraction form
    18,494.27/27,741.60 = 5,346.75/x
  3. Step 3: Cross multiply
    18,494.27x = 27,741.60 × 5,346.75
  4. Step 4: Simplify right side
    18,494.27x = 148,327,399.80
  5. Step 5: Solve for x
    x = 148,327,399.80/18,494.27
  6. Step 6: Final answer
    x = 8,020.18

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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.