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Finding the Fourth Proportional to 2,662.73, 3,994.36 and 907.73

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Solution

The fourth proportional to 2,662.73, 3,994.36 and 907.73 is: 1,361.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.73 : 3,994.36 = 907.73 : x
  2. Step 2: Convert to fraction form
    2,662.73/3,994.36 = 907.73/x
  3. Step 3: Cross multiply
    2,662.73x = 3,994.36 × 907.73
  4. Step 4: Simplify right side
    2,662.73x = 3,625,800.40
  5. Step 5: Solve for x
    x = 3,625,800.40/2,662.73
  6. Step 6: Final answer
    x = 1,361.69

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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.