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Finding the Fourth Proportional to 8,454.58, 12,674.43 and 3,256.90

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Solution

The fourth proportional to 8,454.58, 12,674.43 and 3,256.90 is: 4,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.58 : 12,674.43 = 3,256.90 : x
  2. Step 2: Convert to fraction form
    8,454.58/12,674.43 = 3,256.90/x
  3. Step 3: Cross multiply
    8,454.58x = 12,674.43 × 3,256.90
  4. Step 4: Simplify right side
    8,454.58x = 41,279,351.07
  5. Step 5: Solve for x
    x = 41,279,351.07/8,454.58
  6. Step 6: Final answer
    x = 4,882.48

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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.