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Finding the Fourth Proportional to 6,239.91, 9,359.22 and 2,079.47

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Solution

The fourth proportional to 6,239.91, 9,359.22 and 2,079.47 is: 3,118.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.91 : 9,359.22 = 2,079.47 : x
  2. Step 2: Convert to fraction form
    6,239.91/9,359.22 = 2,079.47/x
  3. Step 3: Cross multiply
    6,239.91x = 9,359.22 × 2,079.47
  4. Step 4: Simplify right side
    6,239.91x = 19,462,213.31
  5. Step 5: Solve for x
    x = 19,462,213.31/6,239.91
  6. Step 6: Final answer
    x = 3,118.99

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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.