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Finding the Fourth Proportional to 57,581.89, 79,462.82 and 33,703.80

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Solution

The fourth proportional to 57,581.89, 79,462.82 and 33,703.80 is: 46,511.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,581.89 : 79,462.82 = 33,703.80 : x
  2. Step 2: Convert to fraction form
    57,581.89/79,462.82 = 33,703.80/x
  3. Step 3: Cross multiply
    57,581.89x = 79,462.82 × 33,703.80
  4. Step 4: Simplify right side
    57,581.89x = 2,678,198,778.99
  5. Step 5: Solve for x
    x = 2,678,198,778.99/57,581.89
  6. Step 6: Final answer
    x = 46,511.13

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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.