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Finding the Fourth Proportional to 18,269.92, 27,413.34 and 9,940.01

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Solution

The fourth proportional to 18,269.92, 27,413.34 and 9,940.01 is: 14,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.92 : 27,413.34 = 9,940.01 : x
  2. Step 2: Convert to fraction form
    18,269.92/27,413.34 = 9,940.01/x
  3. Step 3: Cross multiply
    18,269.92x = 27,413.34 × 9,940.01
  4. Step 4: Simplify right side
    18,269.92x = 272,488,917.42
  5. Step 5: Solve for x
    x = 272,488,917.42/18,269.92
  6. Step 6: Final answer
    x = 14,914.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.