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Finding the Fourth Proportional to 16,942.26, 25,408.80 and 7,079.48

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Solution

The fourth proportional to 16,942.26, 25,408.80 and 7,079.48 is: 10,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,942.26 : 25,408.80 = 7,079.48 : x
  2. Step 2: Convert to fraction form
    16,942.26/25,408.80 = 7,079.48/x
  3. Step 3: Cross multiply
    16,942.26x = 25,408.80 × 7,079.48
  4. Step 4: Simplify right side
    16,942.26x = 179,880,964.38
  5. Step 5: Solve for x
    x = 179,880,964.38/16,942.26
  6. Step 6: Final answer
    x = 10,617.29

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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.