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Finding the Fourth Proportional to 8,429.26, 12,633.65 and 5,964.80

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Solution

The fourth proportional to 8,429.26, 12,633.65 and 5,964.80 is: 8,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.26 : 12,633.65 = 5,964.80 : x
  2. Step 2: Convert to fraction form
    8,429.26/12,633.65 = 5,964.80/x
  3. Step 3: Cross multiply
    8,429.26x = 12,633.65 × 5,964.80
  4. Step 4: Simplify right side
    8,429.26x = 75,357,195.52
  5. Step 5: Solve for x
    x = 75,357,195.52/8,429.26
  6. Step 6: Final answer
    x = 8,939.95

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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.