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Finding the Fourth Proportional to 57,749.70, 79,695.90 and 33,893.58

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Solution

The fourth proportional to 57,749.70, 79,695.90 and 33,893.58 is: 46,773.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,749.70 : 79,695.90 = 33,893.58 : x
  2. Step 2: Convert to fraction form
    57,749.70/79,695.90 = 33,893.58/x
  3. Step 3: Cross multiply
    57,749.70x = 79,695.90 × 33,893.58
  4. Step 4: Simplify right side
    57,749.70x = 2,701,179,362.32
  5. Step 5: Solve for x
    x = 2,701,179,362.32/57,749.70
  6. Step 6: Final answer
    x = 46,773.91

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Why These Related Problems?

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