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Finding the Fourth Proportional to 53,129.58, 79,783.23 and 33,185.49

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Solution

The fourth proportional to 53,129.58, 79,783.23 and 33,185.49 is: 49,833.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,129.58 : 79,783.23 = 33,185.49 : x
  2. Step 2: Convert to fraction form
    53,129.58/79,783.23 = 33,185.49/x
  3. Step 3: Cross multiply
    53,129.58x = 79,783.23 × 33,185.49
  4. Step 4: Simplify right side
    53,129.58x = 2,647,645,581.33
  5. Step 5: Solve for x
    x = 2,647,645,581.33/53,129.58
  6. Step 6: Final answer
    x = 49,833.74

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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.