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Finding the Fourth Proportional to 57,894.70, 79,910.40 and 34,029.04

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Solution

The fourth proportional to 57,894.70, 79,910.40 and 34,029.04 is: 46,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,894.70 : 79,910.40 = 34,029.04 : x
  2. Step 2: Convert to fraction form
    57,894.70/79,910.40 = 34,029.04/x
  3. Step 3: Cross multiply
    57,894.70x = 79,910.40 × 34,029.04
  4. Step 4: Simplify right side
    57,894.70x = 2,719,274,198.02
  5. Step 5: Solve for x
    x = 2,719,274,198.02/57,894.70
  6. Step 6: Final answer
    x = 46,969.31

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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.