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Finding the Fourth Proportional to 6,261.88, 9,374.12 and 3,789.20

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Solution

The fourth proportional to 6,261.88, 9,374.12 and 3,789.20 is: 5,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.88 : 9,374.12 = 3,789.20 : x
  2. Step 2: Convert to fraction form
    6,261.88/9,374.12 = 3,789.20/x
  3. Step 3: Cross multiply
    6,261.88x = 9,374.12 × 3,789.20
  4. Step 4: Simplify right side
    6,261.88x = 35,520,415.50
  5. Step 5: Solve for x
    x = 35,520,415.50/6,261.88
  6. Step 6: Final answer
    x = 5,672.48

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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.