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Finding the Fourth Proportional to 52,321.44, 78,479.40 and 30,694.92

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Solution

The fourth proportional to 52,321.44, 78,479.40 and 30,694.92 is: 46,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,321.44 : 78,479.40 = 30,694.92 : x
  2. Step 2: Convert to fraction form
    52,321.44/78,479.40 = 30,694.92/x
  3. Step 3: Cross multiply
    52,321.44x = 78,479.40 × 30,694.92
  4. Step 4: Simplify right side
    52,321.44x = 2,408,918,904.65
  5. Step 5: Solve for x
    x = 2,408,918,904.65/52,321.44
  6. Step 6: Final answer
    x = 46,040.76

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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.