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Finding the Fourth Proportional to 8,976.92, 13,468.62 and 3,134.39

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Solution

The fourth proportional to 8,976.92, 13,468.62 and 3,134.39 is: 4,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.92 : 13,468.62 = 3,134.39 : x
  2. Step 2: Convert to fraction form
    8,976.92/13,468.62 = 3,134.39/x
  3. Step 3: Cross multiply
    8,976.92x = 13,468.62 × 3,134.39
  4. Step 4: Simplify right side
    8,976.92x = 42,215,907.84
  5. Step 5: Solve for x
    x = 42,215,907.84/8,976.92
  6. Step 6: Final answer
    x = 4,702.72

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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.