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Finding the Fourth Proportional to 53,121.72, 73,357.74 and 33,284.28

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Solution

The fourth proportional to 53,121.72, 73,357.74 and 33,284.28 is: 45,963.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,121.72 : 73,357.74 = 33,284.28 : x
  2. Step 2: Convert to fraction form
    53,121.72/73,357.74 = 33,284.28/x
  3. Step 3: Cross multiply
    53,121.72x = 73,357.74 × 33,284.28
  4. Step 4: Simplify right side
    53,121.72x = 2,441,659,558.33
  5. Step 5: Solve for x
    x = 2,441,659,558.33/53,121.72
  6. Step 6: Final answer
    x = 45,963.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.