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Finding the Fourth Proportional to 4,161, 6,241.50 and 1,083

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Solution

The fourth proportional to 4,161, 6,241.50 and 1,083 is: 1,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,161 : 6,241.50 = 1,083 : x
  2. Step 2: Convert to fraction form
    4,161/6,241.50 = 1,083/x
  3. Step 3: Cross multiply
    4,161x = 6,241.50 × 1,083
  4. Step 4: Simplify right side
    4,161x = 6,759,544.50
  5. Step 5: Solve for x
    x = 6,759,544.50/4,161
  6. Step 6: Final answer
    x = 1,624.50

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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.