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Finding the Fourth Proportional to 64,046.51, 96,002.79 and 21,912.44

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Solution

The fourth proportional to 64,046.51, 96,002.79 and 21,912.44 is: 32,845.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,046.51 : 96,002.79 = 21,912.44 : x
  2. Step 2: Convert to fraction form
    64,046.51/96,002.79 = 21,912.44/x
  3. Step 3: Cross multiply
    64,046.51x = 96,002.79 × 21,912.44
  4. Step 4: Simplify right side
    64,046.51x = 2,103,654,813.52
  5. Step 5: Solve for x
    x = 2,103,654,813.52/64,046.51
  6. Step 6: Final answer
    x = 32,845.74

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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.