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Finding the Fourth Proportional to 18,294.14, 25,245.96 and 9,910.64

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Solution

The fourth proportional to 18,294.14, 25,245.96 and 9,910.64 is: 13,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.14 : 25,245.96 = 9,910.64 : x
  2. Step 2: Convert to fraction form
    18,294.14/25,245.96 = 9,910.64/x
  3. Step 3: Cross multiply
    18,294.14x = 25,245.96 × 9,910.64
  4. Step 4: Simplify right side
    18,294.14x = 250,203,621.01
  5. Step 5: Solve for x
    x = 250,203,621.01/18,294.14
  6. Step 6: Final answer
    x = 13,676.71

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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.