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Finding the Fourth Proportional to 8,606.97, 11,861.37 and 6,212.71

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Solution

The fourth proportional to 8,606.97, 11,861.37 and 6,212.71 is: 8,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.97 : 11,861.37 = 6,212.71 : x
  2. Step 2: Convert to fraction form
    8,606.97/11,861.37 = 6,212.71/x
  3. Step 3: Cross multiply
    8,606.97x = 11,861.37 × 6,212.71
  4. Step 4: Simplify right side
    8,606.97x = 73,691,252.01
  5. Step 5: Solve for x
    x = 73,691,252.01/8,606.97
  6. Step 6: Final answer
    x = 8,561.81

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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.