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Finding the Fourth Proportional to 3,272.82, 4,908.69 and 900.35

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Solution

The fourth proportional to 3,272.82, 4,908.69 and 900.35 is: 1,350.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.82 : 4,908.69 = 900.35 : x
  2. Step 2: Convert to fraction form
    3,272.82/4,908.69 = 900.35/x
  3. Step 3: Cross multiply
    3,272.82x = 4,908.69 × 900.35
  4. Step 4: Simplify right side
    3,272.82x = 4,419,539.04
  5. Step 5: Solve for x
    x = 4,419,539.04/3,272.82
  6. Step 6: Final answer
    x = 1,350.38

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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.