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Finding the Fourth Proportional to 6,761.70, 9,334.50 and 4,247.46

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Solution

The fourth proportional to 6,761.70, 9,334.50 and 4,247.46 is: 5,863.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.70 : 9,334.50 = 4,247.46 : x
  2. Step 2: Convert to fraction form
    6,761.70/9,334.50 = 4,247.46/x
  3. Step 3: Cross multiply
    6,761.70x = 9,334.50 × 4,247.46
  4. Step 4: Simplify right side
    6,761.70x = 39,647,915.37
  5. Step 5: Solve for x
    x = 39,647,915.37/6,761.70
  6. Step 6: Final answer
    x = 5,863.60

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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.