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Finding the Fourth Proportional to 17,098.76, 25,631.13 and 8,211.62

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Solution

The fourth proportional to 17,098.76, 25,631.13 and 8,211.62 is: 12,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,098.76 : 25,631.13 = 8,211.62 : x
  2. Step 2: Convert to fraction form
    17,098.76/25,631.13 = 8,211.62/x
  3. Step 3: Cross multiply
    17,098.76x = 25,631.13 × 8,211.62
  4. Step 4: Simplify right side
    17,098.76x = 210,473,099.73
  5. Step 5: Solve for x
    x = 210,473,099.73/17,098.76
  6. Step 6: Final answer
    x = 12,309.26

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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.