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Finding the Fourth Proportional to 8,256.64, 12,387.48 and 2,634.16

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Solution

The fourth proportional to 8,256.64, 12,387.48 and 2,634.16 is: 3,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.64 : 12,387.48 = 2,634.16 : x
  2. Step 2: Convert to fraction form
    8,256.64/12,387.48 = 2,634.16/x
  3. Step 3: Cross multiply
    8,256.64x = 12,387.48 × 2,634.16
  4. Step 4: Simplify right side
    8,256.64x = 32,630,604.32
  5. Step 5: Solve for x
    x = 32,630,604.32/8,256.64
  6. Step 6: Final answer
    x = 3,952.04

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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.