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Finding the Fourth Proportional to 57,799.49, 86,701.02 and 15,679.41

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Solution

The fourth proportional to 57,799.49, 86,701.02 and 15,679.41 is: 23,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,799.49 : 86,701.02 = 15,679.41 : x
  2. Step 2: Convert to fraction form
    57,799.49/86,701.02 = 15,679.41/x
  3. Step 3: Cross multiply
    57,799.49x = 86,701.02 × 15,679.41
  4. Step 4: Simplify right side
    57,799.49x = 1,359,420,456.07
  5. Step 5: Solve for x
    x = 1,359,420,456.07/57,799.49
  6. Step 6: Final answer
    x = 23,519.59

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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.