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Finding the Fourth Proportional to 29,324.47, 43,986.72 and 7,137.85

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Solution

The fourth proportional to 29,324.47, 43,986.72 and 7,137.85 is: 10,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,324.47 : 43,986.72 = 7,137.85 : x
  2. Step 2: Convert to fraction form
    29,324.47/43,986.72 = 7,137.85/x
  3. Step 3: Cross multiply
    29,324.47x = 43,986.72 × 7,137.85
  4. Step 4: Simplify right side
    29,324.47x = 313,970,609.35
  5. Step 5: Solve for x
    x = 313,970,609.35/29,324.47
  6. Step 6: Final answer
    x = 10,706.78

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1.5x scale

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.