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Finding the Fourth Proportional to 8,335.32, 12,494.34 and 3,949.44

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Solution

The fourth proportional to 8,335.32, 12,494.34 and 3,949.44 is: 5,920.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.32 : 12,494.34 = 3,949.44 : x
  2. Step 2: Convert to fraction form
    8,335.32/12,494.34 = 3,949.44/x
  3. Step 3: Cross multiply
    8,335.32x = 12,494.34 × 3,949.44
  4. Step 4: Simplify right side
    8,335.32x = 49,345,646.17
  5. Step 5: Solve for x
    x = 49,345,646.17/8,335.32
  6. Step 6: Final answer
    x = 5,920.07

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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.