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Finding the Fourth Proportional to 18,413.01, 27,620.15 and 5,086.98

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Solution

The fourth proportional to 18,413.01, 27,620.15 and 5,086.98 is: 7,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.01 : 27,620.15 = 5,086.98 : x
  2. Step 2: Convert to fraction form
    18,413.01/27,620.15 = 5,086.98/x
  3. Step 3: Cross multiply
    18,413.01x = 27,620.15 × 5,086.98
  4. Step 4: Simplify right side
    18,413.01x = 140,503,125.21
  5. Step 5: Solve for x
    x = 140,503,125.21/18,413.01
  6. Step 6: Final answer
    x = 7,630.64

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1.5x scale

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.