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Finding the Fourth Proportional to 69,819.91, 96,353.53 and 37,990.87

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Solution

The fourth proportional to 69,819.91, 96,353.53 and 37,990.87 is: 52,428.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,819.91 : 96,353.53 = 37,990.87 : x
  2. Step 2: Convert to fraction form
    69,819.91/96,353.53 = 37,990.87/x
  3. Step 3: Cross multiply
    69,819.91x = 96,353.53 × 37,990.87
  4. Step 4: Simplify right side
    69,819.91x = 3,660,554,096.41
  5. Step 5: Solve for x
    x = 3,660,554,096.41/69,819.91
  6. Step 6: Final answer
    x = 52,428.52

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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.