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Finding the Fourth Proportional to 18,971.26, 28,461.11 and 5,824.96

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Solution

The fourth proportional to 18,971.26, 28,461.11 and 5,824.96 is: 8,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.26 : 28,461.11 = 5,824.96 : x
  2. Step 2: Convert to fraction form
    18,971.26/28,461.11 = 5,824.96/x
  3. Step 3: Cross multiply
    18,971.26x = 28,461.11 × 5,824.96
  4. Step 4: Simplify right side
    18,971.26x = 165,784,699.56
  5. Step 5: Solve for x
    x = 165,784,699.56/18,971.26
  6. Step 6: Final answer
    x = 8,738.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.