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Finding the Fourth Proportional to 2,796.52, 4,194.78 and 2,658.28

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Solution

The fourth proportional to 2,796.52, 4,194.78 and 2,658.28 is: 3,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.52 : 4,194.78 = 2,658.28 : x
  2. Step 2: Convert to fraction form
    2,796.52/4,194.78 = 2,658.28/x
  3. Step 3: Cross multiply
    2,796.52x = 4,194.78 × 2,658.28
  4. Step 4: Simplify right side
    2,796.52x = 11,150,899.78
  5. Step 5: Solve for x
    x = 11,150,899.78/2,796.52
  6. Step 6: Final answer
    x = 3,987.42

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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.