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Finding the Fourth Proportional to 8,240.91, 12,349.11 and 4,333.47

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Solution

The fourth proportional to 8,240.91, 12,349.11 and 4,333.47 is: 6,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.91 : 12,349.11 = 4,333.47 : x
  2. Step 2: Convert to fraction form
    8,240.91/12,349.11 = 4,333.47/x
  3. Step 3: Cross multiply
    8,240.91x = 12,349.11 × 4,333.47
  4. Step 4: Simplify right side
    8,240.91x = 53,514,497.71
  5. Step 5: Solve for x
    x = 53,514,497.71/8,240.91
  6. Step 6: Final answer
    x = 6,493.76

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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.