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Finding the Fourth Proportional to 6,806.79, 10,211.99 and 3,685.41

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Solution

The fourth proportional to 6,806.79, 10,211.99 and 3,685.41 is: 5,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,806.79 : 10,211.99 = 3,685.41 : x
  2. Step 2: Convert to fraction form
    6,806.79/10,211.99 = 3,685.41/x
  3. Step 3: Cross multiply
    6,806.79x = 10,211.99 × 3,685.41
  4. Step 4: Simplify right side
    6,806.79x = 37,635,351.64
  5. Step 5: Solve for x
    x = 37,635,351.64/6,806.79
  6. Step 6: Final answer
    x = 5,529.09

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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.