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Finding the Fourth Proportional to 8,466.88, 12,700.86 and 3,272.68

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Solution

The fourth proportional to 8,466.88, 12,700.86 and 3,272.68 is: 4,909.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.88 : 12,700.86 = 3,272.68 : x
  2. Step 2: Convert to fraction form
    8,466.88/12,700.86 = 3,272.68/x
  3. Step 3: Cross multiply
    8,466.88x = 12,700.86 × 3,272.68
  4. Step 4: Simplify right side
    8,466.88x = 41,565,850.50
  5. Step 5: Solve for x
    x = 41,565,850.50/8,466.88
  6. Step 6: Final answer
    x = 4,909.23

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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.