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Finding the Fourth Proportional to 8,584.92, 12,872.79 and 4,423.23

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Solution

The fourth proportional to 8,584.92, 12,872.79 and 4,423.23 is: 6,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,584.92 : 12,872.79 = 4,423.23 : x
  2. Step 2: Convert to fraction form
    8,584.92/12,872.79 = 4,423.23/x
  3. Step 3: Cross multiply
    8,584.92x = 12,872.79 × 4,423.23
  4. Step 4: Simplify right side
    8,584.92x = 56,939,310.91
  5. Step 5: Solve for x
    x = 56,939,310.91/8,584.92
  6. Step 6: Final answer
    x = 6,632.48

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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.