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Finding the Fourth Proportional to 52,786.31, 79,179.53 and 15,850.31

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Solution

The fourth proportional to 52,786.31, 79,179.53 and 15,850.31 is: 23,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.31 : 79,179.53 = 15,850.31 : x
  2. Step 2: Convert to fraction form
    52,786.31/79,179.53 = 15,850.31/x
  3. Step 3: Cross multiply
    52,786.31x = 79,179.53 × 15,850.31
  4. Step 4: Simplify right side
    52,786.31x = 1,255,020,016.90
  5. Step 5: Solve for x
    x = 1,255,020,016.90/52,786.31
  6. Step 6: Final answer
    x = 23,775.48

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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.