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Finding the Fourth Proportional to 13,170.92, 18,174.92 and 7,201.32

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Solution

The fourth proportional to 13,170.92, 18,174.92 and 7,201.32 is: 9,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.92 : 18,174.92 = 7,201.32 : x
  2. Step 2: Convert to fraction form
    13,170.92/18,174.92 = 7,201.32/x
  3. Step 3: Cross multiply
    13,170.92x = 18,174.92 × 7,201.32
  4. Step 4: Simplify right side
    13,170.92x = 130,883,310.73
  5. Step 5: Solve for x
    x = 130,883,310.73/13,170.92
  6. Step 6: Final answer
    x = 9,937.30

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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.