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Finding the Fourth Proportional to 55,413.70, 83,003.55 and 36,702.70

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Solution

The fourth proportional to 55,413.70, 83,003.55 and 36,702.70 is: 54,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413.70 : 83,003.55 = 36,702.70 : x
  2. Step 2: Convert to fraction form
    55,413.70/83,003.55 = 36,702.70/x
  3. Step 3: Cross multiply
    55,413.70x = 83,003.55 × 36,702.70
  4. Step 4: Simplify right side
    55,413.70x = 3,046,454,394.59
  5. Step 5: Solve for x
    x = 3,046,454,394.59/55,413.70
  6. Step 6: Final answer
    x = 54,976.56

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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.