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Finding the Fourth Proportional to 14,792.31, 20,413.40 and 8,504.31

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Solution

The fourth proportional to 14,792.31, 20,413.40 and 8,504.31 is: 11,735.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,792.31 : 20,413.40 = 8,504.31 : x
  2. Step 2: Convert to fraction form
    14,792.31/20,413.40 = 8,504.31/x
  3. Step 3: Cross multiply
    14,792.31x = 20,413.40 × 8,504.31
  4. Step 4: Simplify right side
    14,792.31x = 173,601,839.23
  5. Step 5: Solve for x
    x = 173,601,839.23/14,792.31
  6. Step 6: Final answer
    x = 11,735.95

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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.