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Finding the Fourth Proportional to 71,859.58, 107,789.56 and 25,112.46

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Solution

The fourth proportional to 71,859.58, 107,789.56 and 25,112.46 is: 37,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,859.58 : 107,789.56 = 25,112.46 : x
  2. Step 2: Convert to fraction form
    71,859.58/107,789.56 = 25,112.46/x
  3. Step 3: Cross multiply
    71,859.58x = 107,789.56 × 25,112.46
  4. Step 4: Simplify right side
    71,859.58x = 2,706,861,013.92
  5. Step 5: Solve for x
    x = 2,706,861,013.92/71,859.58
  6. Step 6: Final answer
    x = 37,668.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.