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Finding the Fourth Proportional to 9,238.59, 12,759.89 and 6,731.91

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Solution

The fourth proportional to 9,238.59, 12,759.89 and 6,731.91 is: 9,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,238.59 : 12,759.89 = 6,731.91 : x
  2. Step 2: Convert to fraction form
    9,238.59/12,759.89 = 6,731.91/x
  3. Step 3: Cross multiply
    9,238.59x = 12,759.89 × 6,731.91
  4. Step 4: Simplify right side
    9,238.59x = 85,898,397.43
  5. Step 5: Solve for x
    x = 85,898,397.43/9,238.59
  6. Step 6: Final answer
    x = 9,297.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.