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Finding the Fourth Proportional to 2,907.39, 4,361.65 and 1,241.49

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Solution

The fourth proportional to 2,907.39, 4,361.65 and 1,241.49 is: 1,862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.39 : 4,361.65 = 1,241.49 : x
  2. Step 2: Convert to fraction form
    2,907.39/4,361.65 = 1,241.49/x
  3. Step 3: Cross multiply
    2,907.39x = 4,361.65 × 1,241.49
  4. Step 4: Simplify right side
    2,907.39x = 5,414,958.11
  5. Step 5: Solve for x
    x = 5,414,958.11/2,907.39
  6. Step 6: Final answer
    x = 1,862.48

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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.