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Finding the Fourth Proportional to 18,083.70, 24,957.90 and 10,126.44

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Solution

The fourth proportional to 18,083.70, 24,957.90 and 10,126.44 is: 13,975.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.70 : 24,957.90 = 10,126.44 : x
  2. Step 2: Convert to fraction form
    18,083.70/24,957.90 = 10,126.44/x
  3. Step 3: Cross multiply
    18,083.70x = 24,957.90 × 10,126.44
  4. Step 4: Simplify right side
    18,083.70x = 252,734,676.88
  5. Step 5: Solve for x
    x = 252,734,676.88/18,083.70
  6. Step 6: Final answer
    x = 13,975.83

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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.