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Finding the Fourth Proportional to 6,867.15, 10,309.25 and 6,835.56

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Solution

The fourth proportional to 6,867.15, 10,309.25 and 6,835.56 is: 10,261.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.15 : 10,309.25 = 6,835.56 : x
  2. Step 2: Convert to fraction form
    6,867.15/10,309.25 = 6,835.56/x
  3. Step 3: Cross multiply
    6,867.15x = 10,309.25 × 6,835.56
  4. Step 4: Simplify right side
    6,867.15x = 70,469,496.93
  5. Step 5: Solve for x
    x = 70,469,496.93/6,867.15
  6. Step 6: Final answer
    x = 10,261.83

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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.