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Finding the Fourth Proportional to 2,435.88, 3,361.32 and 1,441.20

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Solution

The fourth proportional to 2,435.88, 3,361.32 and 1,441.20 is: 1,988.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,435.88 : 3,361.32 = 1,441.20 : x
  2. Step 2: Convert to fraction form
    2,435.88/3,361.32 = 1,441.20/x
  3. Step 3: Cross multiply
    2,435.88x = 3,361.32 × 1,441.20
  4. Step 4: Simplify right side
    2,435.88x = 4,844,334.38
  5. Step 5: Solve for x
    x = 4,844,334.38/2,435.88
  6. Step 6: Final answer
    x = 1,988.74

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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.