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Finding the Fourth Proportional to 2,368.66, 3,553.29 and 808.96

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Solution

The fourth proportional to 2,368.66, 3,553.29 and 808.96 is: 1,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.66 : 3,553.29 = 808.96 : x
  2. Step 2: Convert to fraction form
    2,368.66/3,553.29 = 808.96/x
  3. Step 3: Cross multiply
    2,368.66x = 3,553.29 × 808.96
  4. Step 4: Simplify right side
    2,368.66x = 2,874,469.48
  5. Step 5: Solve for x
    x = 2,874,469.48/2,368.66
  6. Step 6: Final answer
    x = 1,213.54

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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.