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Finding the Fourth Proportional to 8,239.90, 12,359.91 and 6,594.34

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Solution

The fourth proportional to 8,239.90, 12,359.91 and 6,594.34 is: 9,891.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.90 : 12,359.91 = 6,594.34 : x
  2. Step 2: Convert to fraction form
    8,239.90/12,359.91 = 6,594.34/x
  3. Step 3: Cross multiply
    8,239.90x = 12,359.91 × 6,594.34
  4. Step 4: Simplify right side
    8,239.90x = 81,505,448.91
  5. Step 5: Solve for x
    x = 81,505,448.91/8,239.90
  6. Step 6: Final answer
    x = 9,891.56

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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.