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Finding the Fourth Proportional to 17,130.79, 23,647.02 and 11,163.92

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Solution

The fourth proportional to 17,130.79, 23,647.02 and 11,163.92 is: 15,410.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.79 : 23,647.02 = 11,163.92 : x
  2. Step 2: Convert to fraction form
    17,130.79/23,647.02 = 11,163.92/x
  3. Step 3: Cross multiply
    17,130.79x = 23,647.02 × 11,163.92
  4. Step 4: Simplify right side
    17,130.79x = 263,993,439.52
  5. Step 5: Solve for x
    x = 263,993,439.52/17,130.79
  6. Step 6: Final answer
    x = 15,410.47

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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.