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Finding the Fourth Proportional to 52,739.25, 79,121.84 and 15,803.25

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Solution

The fourth proportional to 52,739.25, 79,121.84 and 15,803.25 is: 23,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.25 : 79,121.84 = 15,803.25 : x
  2. Step 2: Convert to fraction form
    52,739.25/79,121.84 = 15,803.25/x
  3. Step 3: Cross multiply
    52,739.25x = 79,121.84 × 15,803.25
  4. Step 4: Simplify right side
    52,739.25x = 1,250,382,138.96
  5. Step 5: Solve for x
    x = 1,250,382,138.96/52,739.25
  6. Step 6: Final answer
    x = 23,708.76

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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.