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Finding the Fourth Proportional to 5,144.99, 7,717.41 and 1,249.43

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Solution

The fourth proportional to 5,144.99, 7,717.41 and 1,249.43 is: 1,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,144.99 : 7,717.41 = 1,249.43 : x
  2. Step 2: Convert to fraction form
    5,144.99/7,717.41 = 1,249.43/x
  3. Step 3: Cross multiply
    5,144.99x = 7,717.41 × 1,249.43
  4. Step 4: Simplify right side
    5,144.99x = 9,642,324.99
  5. Step 5: Solve for x
    x = 9,642,324.99/5,144.99
  6. Step 6: Final answer
    x = 1,874.12

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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.