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Finding the Fourth Proportional to 8,467.97, 12,694.40 and 4,305.65

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Solution

The fourth proportional to 8,467.97, 12,694.40 and 4,305.65 is: 6,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,467.97 : 12,694.40 = 4,305.65 : x
  2. Step 2: Convert to fraction form
    8,467.97/12,694.40 = 4,305.65/x
  3. Step 3: Cross multiply
    8,467.97x = 12,694.40 × 4,305.65
  4. Step 4: Simplify right side
    8,467.97x = 54,657,621.83
  5. Step 5: Solve for x
    x = 54,657,621.83/8,467.97
  6. Step 6: Final answer
    x = 6,454.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.