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Finding the Fourth Proportional to 64,043.87, 96,081.39 and 28,974.11

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Solution

The fourth proportional to 64,043.87, 96,081.39 and 28,974.11 is: 43,468.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,043.87 : 96,081.39 = 28,974.11 : x
  2. Step 2: Convert to fraction form
    64,043.87/96,081.39 = 28,974.11/x
  3. Step 3: Cross multiply
    64,043.87x = 96,081.39 × 28,974.11
  4. Step 4: Simplify right side
    64,043.87x = 2,783,872,282.41
  5. Step 5: Solve for x
    x = 2,783,872,282.41/64,043.87
  6. Step 6: Final answer
    x = 43,468.21

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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.