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Finding the Fourth Proportional to 57,686.69, 79,608.38 and 33,493.32

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Solution

The fourth proportional to 57,686.69, 79,608.38 and 33,493.32 is: 46,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,686.69 : 79,608.38 = 33,493.32 : x
  2. Step 2: Convert to fraction form
    57,686.69/79,608.38 = 33,493.32/x
  3. Step 3: Cross multiply
    57,686.69x = 79,608.38 × 33,493.32
  4. Step 4: Simplify right side
    57,686.69x = 2,666,348,778.56
  5. Step 5: Solve for x
    x = 2,666,348,778.56/57,686.69
  6. Step 6: Final answer
    x = 46,221.22

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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.