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Finding the Fourth Proportional to 17,409.20, 24,030.17 and 11,121.57

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Solution

The fourth proportional to 17,409.20, 24,030.17 and 11,121.57 is: 15,351.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,409.20 : 24,030.17 = 11,121.57 : x
  2. Step 2: Convert to fraction form
    17,409.20/24,030.17 = 11,121.57/x
  3. Step 3: Cross multiply
    17,409.20x = 24,030.17 × 11,121.57
  4. Step 4: Simplify right side
    17,409.20x = 267,253,203.86
  5. Step 5: Solve for x
    x = 267,253,203.86/17,409.20
  6. Step 6: Final answer
    x = 15,351.27

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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.