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Finding the Fourth Proportional to 12,249.44, 18,374.25 and 3,015.44

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Solution

The fourth proportional to 12,249.44, 18,374.25 and 3,015.44 is: 4,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.44 : 18,374.25 = 3,015.44 : x
  2. Step 2: Convert to fraction form
    12,249.44/18,374.25 = 3,015.44/x
  3. Step 3: Cross multiply
    12,249.44x = 18,374.25 × 3,015.44
  4. Step 4: Simplify right side
    12,249.44x = 55,406,433.34
  5. Step 5: Solve for x
    x = 55,406,433.34/12,249.44
  6. Step 6: Final answer
    x = 4,523.18

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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.