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Finding the Fourth Proportional to 48,379.44, 72,413.64 and 36,318

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Solution

The fourth proportional to 48,379.44, 72,413.64 and 36,318 is: 54,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,379.44 : 72,413.64 = 36,318 : x
  2. Step 2: Convert to fraction form
    48,379.44/72,413.64 = 36,318/x
  3. Step 3: Cross multiply
    48,379.44x = 72,413.64 × 36,318
  4. Step 4: Simplify right side
    48,379.44x = 2,629,918,577.52
  5. Step 5: Solve for x
    x = 2,629,918,577.52/48,379.44
  6. Step 6: Final answer
    x = 54,360.25

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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.