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Finding the Fourth Proportional to 13,891.17, 19,169.82 and 7,603.68

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Solution

The fourth proportional to 13,891.17, 19,169.82 and 7,603.68 is: 10,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.17 : 19,169.82 = 7,603.68 : x
  2. Step 2: Convert to fraction form
    13,891.17/19,169.82 = 7,603.68/x
  3. Step 3: Cross multiply
    13,891.17x = 19,169.82 × 7,603.68
  4. Step 4: Simplify right side
    13,891.17x = 145,761,176.94
  5. Step 5: Solve for x
    x = 145,761,176.94/13,891.17
  6. Step 6: Final answer
    x = 10,493.08

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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.