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Finding the Fourth Proportional to 51,053.31, 76,584.02 and 15,992.87

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Solution

The fourth proportional to 51,053.31, 76,584.02 and 15,992.87 is: 23,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,053.31 : 76,584.02 = 15,992.87 : x
  2. Step 2: Convert to fraction form
    51,053.31/76,584.02 = 15,992.87/x
  3. Step 3: Cross multiply
    51,053.31x = 76,584.02 × 15,992.87
  4. Step 4: Simplify right side
    51,053.31x = 1,224,797,813.05
  5. Step 5: Solve for x
    x = 1,224,797,813.05/51,053.31
  6. Step 6: Final answer
    x = 23,990.57

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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.