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Finding the Fourth Proportional to 11,751.72, 17,625.66 and 4,354.44

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Solution

The fourth proportional to 11,751.72, 17,625.66 and 4,354.44 is: 6,530.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.72 : 17,625.66 = 4,354.44 : x
  2. Step 2: Convert to fraction form
    11,751.72/17,625.66 = 4,354.44/x
  3. Step 3: Cross multiply
    11,751.72x = 17,625.66 × 4,354.44
  4. Step 4: Simplify right side
    11,751.72x = 76,749,878.93
  5. Step 5: Solve for x
    x = 76,749,878.93/11,751.72
  6. Step 6: Final answer
    x = 6,530.95

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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.