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Finding the Fourth Proportional to 16,999.26, 25,461.96 and 8,215.75

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Solution

The fourth proportional to 16,999.26, 25,461.96 and 8,215.75 is: 12,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,999.26 : 25,461.96 = 8,215.75 : x
  2. Step 2: Convert to fraction form
    16,999.26/25,461.96 = 8,215.75/x
  3. Step 3: Cross multiply
    16,999.26x = 25,461.96 × 8,215.75
  4. Step 4: Simplify right side
    16,999.26x = 209,189,097.87
  5. Step 5: Solve for x
    x = 209,189,097.87/16,999.26
  6. Step 6: Final answer
    x = 12,305.78

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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.