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Finding the Fourth Proportional to 6,029.78, 8,321.12 and 3,377.21

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Solution

The fourth proportional to 6,029.78, 8,321.12 and 3,377.21 is: 4,660.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,029.78 : 8,321.12 = 3,377.21 : x
  2. Step 2: Convert to fraction form
    6,029.78/8,321.12 = 3,377.21/x
  3. Step 3: Cross multiply
    6,029.78x = 8,321.12 × 3,377.21
  4. Step 4: Simplify right side
    6,029.78x = 28,102,130.80
  5. Step 5: Solve for x
    x = 28,102,130.80/6,029.78
  6. Step 6: Final answer
    x = 4,660.56

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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.