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Finding the Fourth Proportional to 18,374.85, 27,564.71 and 5,890.73

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Solution

The fourth proportional to 18,374.85, 27,564.71 and 5,890.73 is: 8,836.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.85 : 27,564.71 = 5,890.73 : x
  2. Step 2: Convert to fraction form
    18,374.85/27,564.71 = 5,890.73/x
  3. Step 3: Cross multiply
    18,374.85x = 27,564.71 × 5,890.73
  4. Step 4: Simplify right side
    18,374.85x = 162,376,096.86
  5. Step 5: Solve for x
    x = 162,376,096.86/18,374.85
  6. Step 6: Final answer
    x = 8,836.87

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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.