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Finding the Fourth Proportional to 29,258.62, 43,892.26 and 8,479.42

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Solution

The fourth proportional to 29,258.62, 43,892.26 and 8,479.42 is: 12,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,258.62 : 43,892.26 = 8,479.42 : x
  2. Step 2: Convert to fraction form
    29,258.62/43,892.26 = 8,479.42/x
  3. Step 3: Cross multiply
    29,258.62x = 43,892.26 × 8,479.42
  4. Step 4: Simplify right side
    29,258.62x = 372,180,907.29
  5. Step 5: Solve for x
    x = 372,180,907.29/29,258.62
  6. Step 6: Final answer
    x = 12,720.38

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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.