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Finding the Fourth Proportional to 6,278.88, 8,664.22 and 3,760.48

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Solution

The fourth proportional to 6,278.88, 8,664.22 and 3,760.48 is: 5,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.88 : 8,664.22 = 3,760.48 : x
  2. Step 2: Convert to fraction form
    6,278.88/8,664.22 = 3,760.48/x
  3. Step 3: Cross multiply
    6,278.88x = 8,664.22 × 3,760.48
  4. Step 4: Simplify right side
    6,278.88x = 32,581,626.03
  5. Step 5: Solve for x
    x = 32,581,626.03/6,278.88
  6. Step 6: Final answer
    x = 5,189.08

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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.