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Finding the Fourth Proportional to 28,816.52, 39,767.91 and 16,241

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Solution

The fourth proportional to 28,816.52, 39,767.91 and 16,241 is: 22,413.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.52 : 39,767.91 = 16,241 : x
  2. Step 2: Convert to fraction form
    28,816.52/39,767.91 = 16,241/x
  3. Step 3: Cross multiply
    28,816.52x = 39,767.91 × 16,241
  4. Step 4: Simplify right side
    28,816.52x = 645,870,626.31
  5. Step 5: Solve for x
    x = 645,870,626.31/28,816.52
  6. Step 6: Final answer
    x = 22,413.21

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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.