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Finding the Fourth Proportional to 1,168.75, 1,750.55 and 966.09

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Solution

The fourth proportional to 1,168.75, 1,750.55 and 966.09 is: 1,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.75 : 1,750.55 = 966.09 : x
  2. Step 2: Convert to fraction form
    1,168.75/1,750.55 = 966.09/x
  3. Step 3: Cross multiply
    1,168.75x = 1,750.55 × 966.09
  4. Step 4: Simplify right side
    1,168.75x = 1,691,192.62
  5. Step 5: Solve for x
    x = 1,691,192.62/1,168.75
  6. Step 6: Final answer
    x = 1,447.01

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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.