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Finding the Fourth Proportional to 11,662.54, 17,486.79 and 4,643.44

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Solution

The fourth proportional to 11,662.54, 17,486.79 and 4,643.44 is: 6,962.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662.54 : 17,486.79 = 4,643.44 : x
  2. Step 2: Convert to fraction form
    11,662.54/17,486.79 = 4,643.44/x
  3. Step 3: Cross multiply
    11,662.54x = 17,486.79 × 4,643.44
  4. Step 4: Simplify right side
    11,662.54x = 81,198,860.16
  5. Step 5: Solve for x
    x = 81,198,860.16/11,662.54
  6. Step 6: Final answer
    x = 6,962.36

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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.