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Finding the Fourth Proportional to 8,912.88, 12,299.22 and 4,933.26

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Solution

The fourth proportional to 8,912.88, 12,299.22 and 4,933.26 is: 6,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.88 : 12,299.22 = 4,933.26 : x
  2. Step 2: Convert to fraction form
    8,912.88/12,299.22 = 4,933.26/x
  3. Step 3: Cross multiply
    8,912.88x = 12,299.22 × 4,933.26
  4. Step 4: Simplify right side
    8,912.88x = 60,675,250.06
  5. Step 5: Solve for x
    x = 60,675,250.06/8,912.88
  6. Step 6: Final answer
    x = 6,807.59

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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.