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Finding the Fourth Proportional to 8,859.70, 12,227.73 and 6,731.74

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Solution

The fourth proportional to 8,859.70, 12,227.73 and 6,731.74 is: 9,290.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.70 : 12,227.73 = 6,731.74 : x
  2. Step 2: Convert to fraction form
    8,859.70/12,227.73 = 6,731.74/x
  3. Step 3: Cross multiply
    8,859.70x = 12,227.73 × 6,731.74
  4. Step 4: Simplify right side
    8,859.70x = 82,313,899.15
  5. Step 5: Solve for x
    x = 82,313,899.15/8,859.70
  6. Step 6: Final answer
    x = 9,290.82

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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.