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Finding the Fourth Proportional to 6,091,687.71, 8,405,620.74 and 3,770,914.59

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Solution

The fourth proportional to 6,091,687.71, 8,405,620.74 and 3,770,914.59 is: 5,203,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,091,687.71 : 8,405,620.74 = 3,770,914.59 : x
  2. Step 2: Convert to fraction form
    6,091,687.71/8,405,620.74 = 3,770,914.59/x
  3. Step 3: Cross multiply
    6,091,687.71x = 8,405,620.74 × 3,770,914.59
  4. Step 4: Simplify right side
    6,091,687.71x = 31,696,877,886,472.60
  5. Step 5: Solve for x
    x = 31,696,877,886,472.60/6,091,687.71
  6. Step 6: Final answer
    x = 5,203,299.87

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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.