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Finding the Fourth Proportional to 9,234.45, 12,743.05 and 5,255.93

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Solution

The fourth proportional to 9,234.45, 12,743.05 and 5,255.93 is: 7,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,234.45 : 12,743.05 = 5,255.93 : x
  2. Step 2: Convert to fraction form
    9,234.45/12,743.05 = 5,255.93/x
  3. Step 3: Cross multiply
    9,234.45x = 12,743.05 × 5,255.93
  4. Step 4: Simplify right side
    9,234.45x = 66,976,578.79
  5. Step 5: Solve for x
    x = 66,976,578.79/9,234.45
  6. Step 6: Final answer
    x = 7,252.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.