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Finding the Fourth Proportional to 6,757.42, 9,323.88 and 3,772.78

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Solution

The fourth proportional to 6,757.42, 9,323.88 and 3,772.78 is: 5,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,757.42 : 9,323.88 = 3,772.78 : x
  2. Step 2: Convert to fraction form
    6,757.42/9,323.88 = 3,772.78/x
  3. Step 3: Cross multiply
    6,757.42x = 9,323.88 × 3,772.78
  4. Step 4: Simplify right side
    6,757.42x = 35,176,947.99
  5. Step 5: Solve for x
    x = 35,176,947.99/6,757.42
  6. Step 6: Final answer
    x = 5,205.68

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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.