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Finding the Fourth Proportional to 6,367.21, 8,786.56 and 3,714.43

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Solution

The fourth proportional to 6,367.21, 8,786.56 and 3,714.43 is: 5,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,367.21 : 8,786.56 = 3,714.43 : x
  2. Step 2: Convert to fraction form
    6,367.21/8,786.56 = 3,714.43/x
  3. Step 3: Cross multiply
    6,367.21x = 8,786.56 × 3,714.43
  4. Step 4: Simplify right side
    6,367.21x = 32,637,062.06
  5. Step 5: Solve for x
    x = 32,637,062.06/6,367.21
  6. Step 6: Final answer
    x = 5,125.80

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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.