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Finding the Fourth Proportional to 13,308.97, 19,919.71 and 11,850.97

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Solution

The fourth proportional to 13,308.97, 19,919.71 and 11,850.97 is: 17,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.97 : 19,919.71 = 11,850.97 : x
  2. Step 2: Convert to fraction form
    13,308.97/19,919.71 = 11,850.97/x
  3. Step 3: Cross multiply
    13,308.97x = 19,919.71 × 11,850.97
  4. Step 4: Simplify right side
    13,308.97x = 236,067,885.62
  5. Step 5: Solve for x
    x = 236,067,885.62/13,308.97
  6. Step 6: Final answer
    x = 17,737.50

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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.