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Finding the Fourth Proportional to 1,181.69, 1,771.04 and 1,035.09

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Solution

The fourth proportional to 1,181.69, 1,771.04 and 1,035.09 is: 1,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181.69 : 1,771.04 = 1,035.09 : x
  2. Step 2: Convert to fraction form
    1,181.69/1,771.04 = 1,035.09/x
  3. Step 3: Cross multiply
    1,181.69x = 1,771.04 × 1,035.09
  4. Step 4: Simplify right side
    1,181.69x = 1,833,180.62
  5. Step 5: Solve for x
    x = 1,833,180.62/1,181.69
  6. Step 6: Final answer
    x = 1,551.33

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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.