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Finding the Fourth Proportional to 13,696.52, 18,901.22 and 7,408.89

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Solution

The fourth proportional to 13,696.52, 18,901.22 and 7,408.89 is: 10,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,696.52 : 18,901.22 = 7,408.89 : x
  2. Step 2: Convert to fraction form
    13,696.52/18,901.22 = 7,408.89/x
  3. Step 3: Cross multiply
    13,696.52x = 18,901.22 × 7,408.89
  4. Step 4: Simplify right side
    13,696.52x = 140,037,022.80
  5. Step 5: Solve for x
    x = 140,037,022.80/13,696.52
  6. Step 6: Final answer
    x = 10,224.28

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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.