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Finding the Fourth Proportional to 64,578.08, 96,658.80 and 33,370.40

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Solution

The fourth proportional to 64,578.08, 96,658.80 and 33,370.40 is: 49,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,578.08 : 96,658.80 = 33,370.40 : x
  2. Step 2: Convert to fraction form
    64,578.08/96,658.80 = 33,370.40/x
  3. Step 3: Cross multiply
    64,578.08x = 96,658.80 × 33,370.40
  4. Step 4: Simplify right side
    64,578.08x = 3,225,542,819.52
  5. Step 5: Solve for x
    x = 3,225,542,819.52/64,578.08
  6. Step 6: Final answer
    x = 49,947.95

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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.