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Finding the Fourth Proportional to 64,481.37, 96,671.88 and 30,729.88

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Solution

The fourth proportional to 64,481.37, 96,671.88 and 30,729.88 is: 46,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,481.37 : 96,671.88 = 30,729.88 : x
  2. Step 2: Convert to fraction form
    64,481.37/96,671.88 = 30,729.88/x
  3. Step 3: Cross multiply
    64,481.37x = 96,671.88 × 30,729.88
  4. Step 4: Simplify right side
    64,481.37x = 2,970,715,392.61
  5. Step 5: Solve for x
    x = 2,970,715,392.61/64,481.37
  6. Step 6: Final answer
    x = 46,070.91

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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.