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Finding the Fourth Proportional to 57,251.80, 79,007.70 and 31,760.52

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Solution

The fourth proportional to 57,251.80, 79,007.70 and 31,760.52 is: 43,829.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,251.80 : 79,007.70 = 31,760.52 : x
  2. Step 2: Convert to fraction form
    57,251.80/79,007.70 = 31,760.52/x
  3. Step 3: Cross multiply
    57,251.80x = 79,007.70 × 31,760.52
  4. Step 4: Simplify right side
    57,251.80x = 2,509,325,636.00
  5. Step 5: Solve for x
    x = 2,509,325,636.00/57,251.80
  6. Step 6: Final answer
    x = 43,829.64

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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.