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Finding the Fourth Proportional to 2,745.88, 3,786.80 and 2,349.04

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Solution

The fourth proportional to 2,745.88, 3,786.80 and 2,349.04 is: 3,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.88 : 3,786.80 = 2,349.04 : x
  2. Step 2: Convert to fraction form
    2,745.88/3,786.80 = 2,349.04/x
  3. Step 3: Cross multiply
    2,745.88x = 3,786.80 × 2,349.04
  4. Step 4: Simplify right side
    2,745.88x = 8,895,344.67
  5. Step 5: Solve for x
    x = 8,895,344.67/2,745.88
  6. Step 6: Final answer
    x = 3,239.52

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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.