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Finding the Fourth Proportional to 52,786.89, 79,185.49 and 15,347.25

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Solution

The fourth proportional to 52,786.89, 79,185.49 and 15,347.25 is: 23,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.89 : 79,185.49 = 15,347.25 : x
  2. Step 2: Convert to fraction form
    52,786.89/79,185.49 = 15,347.25/x
  3. Step 3: Cross multiply
    52,786.89x = 79,185.49 × 15,347.25
  4. Step 4: Simplify right side
    52,786.89x = 1,215,279,473.03
  5. Step 5: Solve for x
    x = 1,215,279,473.03/52,786.89
  6. Step 6: Final answer
    x = 23,022.37

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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.