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Finding the Fourth Proportional to 3,775.72, 5,208.84 and 2,202.88

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Solution

The fourth proportional to 3,775.72, 5,208.84 and 2,202.88 is: 3,039.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.72 : 5,208.84 = 2,202.88 : x
  2. Step 2: Convert to fraction form
    3,775.72/5,208.84 = 2,202.88/x
  3. Step 3: Cross multiply
    3,775.72x = 5,208.84 × 2,202.88
  4. Step 4: Simplify right side
    3,775.72x = 11,474,449.46
  5. Step 5: Solve for x
    x = 11,474,449.46/3,775.72
  6. Step 6: Final answer
    x = 3,039.01

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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.