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Finding the Fourth Proportional to 6,896.88, 9,517.50 and 4,064.31

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Solution

The fourth proportional to 6,896.88, 9,517.50 and 4,064.31 is: 5,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,896.88 : 9,517.50 = 4,064.31 : x
  2. Step 2: Convert to fraction form
    6,896.88/9,517.50 = 4,064.31/x
  3. Step 3: Cross multiply
    6,896.88x = 9,517.50 × 4,064.31
  4. Step 4: Simplify right side
    6,896.88x = 38,682,070.43
  5. Step 5: Solve for x
    x = 38,682,070.43/6,896.88
  6. Step 6: Final answer
    x = 5,608.63

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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.