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Finding the Fourth Proportional to 33,620.40, 50,479.20 and 25,358.40

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Solution

The fourth proportional to 33,620.40, 50,479.20 and 25,358.40 is: 38,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,620.40 : 50,479.20 = 25,358.40 : x
  2. Step 2: Convert to fraction form
    33,620.40/50,479.20 = 25,358.40/x
  3. Step 3: Cross multiply
    33,620.40x = 50,479.20 × 25,358.40
  4. Step 4: Simplify right side
    33,620.40x = 1,280,071,745.28
  5. Step 5: Solve for x
    x = 1,280,071,745.28/33,620.40
  6. Step 6: Final answer
    x = 38,074.26

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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.