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Finding the Fourth Proportional to 11,968.72, 17,954 and 3,203.44

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Solution

The fourth proportional to 11,968.72, 17,954 and 3,203.44 is: 4,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.72 : 17,954 = 3,203.44 : x
  2. Step 2: Convert to fraction form
    11,968.72/17,954 = 3,203.44/x
  3. Step 3: Cross multiply
    11,968.72x = 17,954 × 3,203.44
  4. Step 4: Simplify right side
    11,968.72x = 57,514,561.76
  5. Step 5: Solve for x
    x = 57,514,561.76/11,968.72
  6. Step 6: Final answer
    x = 4,805.41

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1.5x scale

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.