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Finding the Fourth Proportional to 11,967.25, 17,951.60 and 3,759.25

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Solution

The fourth proportional to 11,967.25, 17,951.60 and 3,759.25 is: 5,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,967.25 : 17,951.60 = 3,759.25 : x
  2. Step 2: Convert to fraction form
    11,967.25/17,951.60 = 3,759.25/x
  3. Step 3: Cross multiply
    11,967.25x = 17,951.60 × 3,759.25
  4. Step 4: Simplify right side
    11,967.25x = 67,484,552.30
  5. Step 5: Solve for x
    x = 67,484,552.30/11,967.25
  6. Step 6: Final answer
    x = 5,639.10

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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.