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Finding the Fourth Proportional to 16,841.70, 25,234.20 and 13,318.20

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Solution

The fourth proportional to 16,841.70, 25,234.20 and 13,318.20 is: 19,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,841.70 : 25,234.20 = 13,318.20 : x
  2. Step 2: Convert to fraction form
    16,841.70/25,234.20 = 13,318.20/x
  3. Step 3: Cross multiply
    16,841.70x = 25,234.20 × 13,318.20
  4. Step 4: Simplify right side
    16,841.70x = 336,074,122.44
  5. Step 5: Solve for x
    x = 336,074,122.44/16,841.70
  6. Step 6: Final answer
    x = 19,954.88

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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.