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Finding the Fourth Proportional to 57,608.69, 86,413.03 and 18,168.86

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Solution

The fourth proportional to 57,608.69, 86,413.03 and 18,168.86 is: 27,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,608.69 : 86,413.03 = 18,168.86 : x
  2. Step 2: Convert to fraction form
    57,608.69/86,413.03 = 18,168.86/x
  3. Step 3: Cross multiply
    57,608.69x = 86,413.03 × 18,168.86
  4. Step 4: Simplify right side
    57,608.69x = 1,570,026,414.86
  5. Step 5: Solve for x
    x = 1,570,026,414.86/57,608.69
  6. Step 6: Final answer
    x = 27,253.29

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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.