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Finding the Fourth Proportional to 12,682.41, 17,494.08 and 8,375.53

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Solution

The fourth proportional to 12,682.41, 17,494.08 and 8,375.53 is: 11,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.41 : 17,494.08 = 8,375.53 : x
  2. Step 2: Convert to fraction form
    12,682.41/17,494.08 = 8,375.53/x
  3. Step 3: Cross multiply
    12,682.41x = 17,494.08 × 8,375.53
  4. Step 4: Simplify right side
    12,682.41x = 146,522,116.72
  5. Step 5: Solve for x
    x = 146,522,116.72/12,682.41
  6. Step 6: Final answer
    x = 11,553.18

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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.