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Finding the Fourth Proportional to 43,930.41, 65,895.03 and 10,650.78

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Solution

The fourth proportional to 43,930.41, 65,895.03 and 10,650.78 is: 15,976.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,930.41 : 65,895.03 = 10,650.78 : x
  2. Step 2: Convert to fraction form
    43,930.41/65,895.03 = 10,650.78/x
  3. Step 3: Cross multiply
    43,930.41x = 65,895.03 × 10,650.78
  4. Step 4: Simplify right side
    43,930.41x = 701,833,467.62
  5. Step 5: Solve for x
    x = 701,833,467.62/43,930.41
  6. Step 6: Final answer
    x = 15,976.03

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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.