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Finding the Fourth Proportional to 2,774.90, 3,846.90 and 2,626.94

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Solution

The fourth proportional to 2,774.90, 3,846.90 and 2,626.94 is: 3,641.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.90 : 3,846.90 = 2,626.94 : x
  2. Step 2: Convert to fraction form
    2,774.90/3,846.90 = 2,626.94/x
  3. Step 3: Cross multiply
    2,774.90x = 3,846.90 × 2,626.94
  4. Step 4: Simplify right side
    2,774.90x = 10,105,575.49
  5. Step 5: Solve for x
    x = 10,105,575.49/2,774.90
  6. Step 6: Final answer
    x = 3,641.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.