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Finding the Fourth Proportional to 18,735.25, 25,854.66 and 10,351.75

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Solution

The fourth proportional to 18,735.25, 25,854.66 and 10,351.75 is: 14,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.25 : 25,854.66 = 10,351.75 : x
  2. Step 2: Convert to fraction form
    18,735.25/25,854.66 = 10,351.75/x
  3. Step 3: Cross multiply
    18,735.25x = 25,854.66 × 10,351.75
  4. Step 4: Simplify right side
    18,735.25x = 267,640,976.66
  5. Step 5: Solve for x
    x = 267,640,976.66/18,735.25
  6. Step 6: Final answer
    x = 14,285.42

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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.