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Finding the Fourth Proportional to 11,774.75, 17,662.14 and 3,984.17

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Solution

The fourth proportional to 11,774.75, 17,662.14 and 3,984.17 is: 5,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,774.75 : 17,662.14 = 3,984.17 : x
  2. Step 2: Convert to fraction form
    11,774.75/17,662.14 = 3,984.17/x
  3. Step 3: Cross multiply
    11,774.75x = 17,662.14 × 3,984.17
  4. Step 4: Simplify right side
    11,774.75x = 70,368,968.32
  5. Step 5: Solve for x
    x = 70,368,968.32/11,774.75
  6. Step 6: Final answer
    x = 5,976.26

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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.