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Finding the Fourth Proportional to 15,682.80, 23,496.78 and 13,067.10

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Solution

The fourth proportional to 15,682.80, 23,496.78 and 13,067.10 is: 19,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,682.80 : 23,496.78 = 13,067.10 : x
  2. Step 2: Convert to fraction form
    15,682.80/23,496.78 = 13,067.10/x
  3. Step 3: Cross multiply
    15,682.80x = 23,496.78 × 13,067.10
  4. Step 4: Simplify right side
    15,682.80x = 307,034,773.94
  5. Step 5: Solve for x
    x = 307,034,773.94/15,682.80
  6. Step 6: Final answer
    x = 19,577.80

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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.