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Finding the Fourth Proportional to 18,851.67, 28,273.86 and 5,700.96

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Solution

The fourth proportional to 18,851.67, 28,273.86 and 5,700.96 is: 8,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.67 : 28,273.86 = 5,700.96 : x
  2. Step 2: Convert to fraction form
    18,851.67/28,273.86 = 5,700.96/x
  3. Step 3: Cross multiply
    18,851.67x = 28,273.86 × 5,700.96
  4. Step 4: Simplify right side
    18,851.67x = 161,188,144.91
  5. Step 5: Solve for x
    x = 161,188,144.91/18,851.67
  6. Step 6: Final answer
    x = 8,550.34

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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.