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Finding the Fourth Proportional to 12,474.92, 18,702.57 and 6,231.71

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Solution

The fourth proportional to 12,474.92, 18,702.57 and 6,231.71 is: 9,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.92 : 18,702.57 = 6,231.71 : x
  2. Step 2: Convert to fraction form
    12,474.92/18,702.57 = 6,231.71/x
  3. Step 3: Cross multiply
    12,474.92x = 18,702.57 × 6,231.71
  4. Step 4: Simplify right side
    12,474.92x = 116,548,992.49
  5. Step 5: Solve for x
    x = 116,548,992.49/12,474.92
  6. Step 6: Final answer
    x = 9,342.66

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1.5x scale

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.