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Finding the Fourth Proportional to 15,953.55, 23,914.89 and 8,936.97

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Solution

The fourth proportional to 15,953.55, 23,914.89 and 8,936.97 is: 13,396.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,953.55 : 23,914.89 = 8,936.97 : x
  2. Step 2: Convert to fraction form
    15,953.55/23,914.89 = 8,936.97/x
  3. Step 3: Cross multiply
    15,953.55x = 23,914.89 × 8,936.97
  4. Step 4: Simplify right side
    15,953.55x = 213,726,654.48
  5. Step 5: Solve for x
    x = 213,726,654.48/15,953.55
  6. Step 6: Final answer
    x = 13,396.81

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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.