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Finding the Fourth Proportional to 33,718.75, 50,584.62 and 12,940.63

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Solution

The fourth proportional to 33,718.75, 50,584.62 and 12,940.63 is: 19,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,718.75 : 50,584.62 = 12,940.63 : x
  2. Step 2: Convert to fraction form
    33,718.75/50,584.62 = 12,940.63/x
  3. Step 3: Cross multiply
    33,718.75x = 50,584.62 × 12,940.63
  4. Step 4: Simplify right side
    33,718.75x = 654,596,598.19
  5. Step 5: Solve for x
    x = 654,596,598.19/33,718.75
  6. Step 6: Final answer
    x = 19,413.43

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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.