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Finding the Fourth Proportional to 3,166, 4,369.28 and 1,768.88

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Solution

The fourth proportional to 3,166, 4,369.28 and 1,768.88 is: 2,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,166 : 4,369.28 = 1,768.88 : x
  2. Step 2: Convert to fraction form
    3,166/4,369.28 = 1,768.88/x
  3. Step 3: Cross multiply
    3,166x = 4,369.28 × 1,768.88
  4. Step 4: Simplify right side
    3,166x = 7,728,732.01
  5. Step 5: Solve for x
    x = 7,728,732.01/3,166
  6. Step 6: Final answer
    x = 2,441.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.