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Finding the Fourth Proportional to 6,782.88, 9,367.87 and 6,222.46

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Solution

The fourth proportional to 6,782.88, 9,367.87 and 6,222.46 is: 8,593.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,782.88 : 9,367.87 = 6,222.46 : x
  2. Step 2: Convert to fraction form
    6,782.88/9,367.87 = 6,222.46/x
  3. Step 3: Cross multiply
    6,782.88x = 9,367.87 × 6,222.46
  4. Step 4: Simplify right side
    6,782.88x = 58,291,196.36
  5. Step 5: Solve for x
    x = 58,291,196.36/6,782.88
  6. Step 6: Final answer
    x = 8,593.87

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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.