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Finding the Fourth Proportional to 2,662.34, 3,993.50 and 907.54

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Solution

The fourth proportional to 2,662.34, 3,993.50 and 907.54 is: 1,361.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.34 : 3,993.50 = 907.54 : x
  2. Step 2: Convert to fraction form
    2,662.34/3,993.50 = 907.54/x
  3. Step 3: Cross multiply
    2,662.34x = 3,993.50 × 907.54
  4. Step 4: Simplify right side
    2,662.34x = 3,624,253.28
  5. Step 5: Solve for x
    x = 3,624,253.28/2,662.34
  6. Step 6: Final answer
    x = 1,361.31

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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.