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Finding the Fourth Proportional to 18,527.82, 27,791.80 and 4,487.83

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Solution

The fourth proportional to 18,527.82, 27,791.80 and 4,487.83 is: 6,731.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,527.82 : 27,791.80 = 4,487.83 : x
  2. Step 2: Convert to fraction form
    18,527.82/27,791.80 = 4,487.83/x
  3. Step 3: Cross multiply
    18,527.82x = 27,791.80 × 4,487.83
  4. Step 4: Simplify right side
    18,527.82x = 124,724,873.79
  5. Step 5: Solve for x
    x = 124,724,873.79/18,527.82
  6. Step 6: Final answer
    x = 6,731.76

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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.