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Finding the Fourth Proportional to 44,811.63, 67,201.78 and 13,213.31

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Solution

The fourth proportional to 44,811.63, 67,201.78 and 13,213.31 is: 19,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,811.63 : 67,201.78 = 13,213.31 : x
  2. Step 2: Convert to fraction form
    44,811.63/67,201.78 = 13,213.31/x
  3. Step 3: Cross multiply
    44,811.63x = 67,201.78 × 13,213.31
  4. Step 4: Simplify right side
    44,811.63x = 887,957,951.69
  5. Step 5: Solve for x
    x = 887,957,951.69/44,811.63
  6. Step 6: Final answer
    x = 19,815.35

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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.