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Finding the Fourth Proportional to 57,910.80, 79,906.62 and 34,042.32

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Solution

The fourth proportional to 57,910.80, 79,906.62 and 34,042.32 is: 46,972.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,910.80 : 79,906.62 = 34,042.32 : x
  2. Step 2: Convert to fraction form
    57,910.80/79,906.62 = 34,042.32/x
  3. Step 3: Cross multiply
    57,910.80x = 79,906.62 × 34,042.32
  4. Step 4: Simplify right side
    57,910.80x = 2,720,206,728.16
  5. Step 5: Solve for x
    x = 2,720,206,728.16/57,910.80
  6. Step 6: Final answer
    x = 46,972.36

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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.