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Finding the Fourth Proportional to 53,661.66, 80,480.97 and 33,661.50

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Solution

The fourth proportional to 53,661.66, 80,480.97 and 33,661.50 is: 50,485.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,661.66 : 80,480.97 = 33,661.50 : x
  2. Step 2: Convert to fraction form
    53,661.66/80,480.97 = 33,661.50/x
  3. Step 3: Cross multiply
    53,661.66x = 80,480.97 × 33,661.50
  4. Step 4: Simplify right side
    53,661.66x = 2,709,110,171.66
  5. Step 5: Solve for x
    x = 2,709,110,171.66/53,661.66
  6. Step 6: Final answer
    x = 50,485.02

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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.