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Finding the Fourth Proportional to 4,982.92, 7,472.94 and 1,519

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Solution

The fourth proportional to 4,982.92, 7,472.94 and 1,519 is: 2,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,982.92 : 7,472.94 = 1,519 : x
  2. Step 2: Convert to fraction form
    4,982.92/7,472.94 = 1,519/x
  3. Step 3: Cross multiply
    4,982.92x = 7,472.94 × 1,519
  4. Step 4: Simplify right side
    4,982.92x = 11,351,395.86
  5. Step 5: Solve for x
    x = 11,351,395.86/4,982.92
  6. Step 6: Final answer
    x = 2,278.06

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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.