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Finding the Fourth Proportional to 15,694.80, 23,542.20 and 11,029.20

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Solution

The fourth proportional to 15,694.80, 23,542.20 and 11,029.20 is: 16,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.80 : 23,542.20 = 11,029.20 : x
  2. Step 2: Convert to fraction form
    15,694.80/23,542.20 = 11,029.20/x
  3. Step 3: Cross multiply
    15,694.80x = 23,542.20 × 11,029.20
  4. Step 4: Simplify right side
    15,694.80x = 259,651,632.24
  5. Step 5: Solve for x
    x = 259,651,632.24/15,694.80
  6. Step 6: Final answer
    x = 16,543.80

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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.