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Finding the Fourth Proportional to 19,172.98, 26,452.54 and 11,616.90

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Solution

The fourth proportional to 19,172.98, 26,452.54 and 11,616.90 is: 16,027.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.98 : 26,452.54 = 11,616.90 : x
  2. Step 2: Convert to fraction form
    19,172.98/26,452.54 = 11,616.90/x
  3. Step 3: Cross multiply
    19,172.98x = 26,452.54 × 11,616.90
  4. Step 4: Simplify right side
    19,172.98x = 307,296,511.93
  5. Step 5: Solve for x
    x = 307,296,511.93/19,172.98
  6. Step 6: Final answer
    x = 16,027.58

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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.