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Finding the Fourth Proportional to 4,193.88, 6,290.40 and 2,549.88

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Solution

The fourth proportional to 4,193.88, 6,290.40 and 2,549.88 is: 3,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,193.88 : 6,290.40 = 2,549.88 : x
  2. Step 2: Convert to fraction form
    4,193.88/6,290.40 = 2,549.88/x
  3. Step 3: Cross multiply
    4,193.88x = 6,290.40 × 2,549.88
  4. Step 4: Simplify right side
    4,193.88x = 16,039,765.15
  5. Step 5: Solve for x
    x = 16,039,765.15/4,193.88
  6. Step 6: Final answer
    x = 3,824.56

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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.