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Finding the Fourth Proportional to 16,997.99, 23,438.32 and 11,621.30

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Solution

The fourth proportional to 16,997.99, 23,438.32 and 11,621.30 is: 16,024.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,997.99 : 23,438.32 = 11,621.30 : x
  2. Step 2: Convert to fraction form
    16,997.99/23,438.32 = 11,621.30/x
  3. Step 3: Cross multiply
    16,997.99x = 23,438.32 × 11,621.30
  4. Step 4: Simplify right side
    16,997.99x = 272,383,690.11
  5. Step 5: Solve for x
    x = 272,383,690.11/16,997.99
  6. Step 6: Final answer
    x = 16,024.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.