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Finding the Fourth Proportional to 33,615.63, 50,379.71 and 20,960.19

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Solution

The fourth proportional to 33,615.63, 50,379.71 and 20,960.19 is: 31,413.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,615.63 : 50,379.71 = 20,960.19 : x
  2. Step 2: Convert to fraction form
    33,615.63/50,379.71 = 20,960.19/x
  3. Step 3: Cross multiply
    33,615.63x = 50,379.71 × 20,960.19
  4. Step 4: Simplify right side
    33,615.63x = 1,055,968,188.94
  5. Step 5: Solve for x
    x = 1,055,968,188.94/33,615.63
  6. Step 6: Final answer
    x = 31,413.01

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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.