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Finding the Fourth Proportional to 18,803.10, 28,191.96 and 8,273.10

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Solution

The fourth proportional to 18,803.10, 28,191.96 and 8,273.10 is: 12,404.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,803.10 : 28,191.96 = 8,273.10 : x
  2. Step 2: Convert to fraction form
    18,803.10/28,191.96 = 8,273.10/x
  3. Step 3: Cross multiply
    18,803.10x = 28,191.96 × 8,273.10
  4. Step 4: Simplify right side
    18,803.10x = 233,234,904.28
  5. Step 5: Solve for x
    x = 233,234,904.28/18,803.10
  6. Step 6: Final answer
    x = 12,404.07

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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.