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Finding the Fourth Proportional to 2,368.73, 3,553.09 and 725.29

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Solution

The fourth proportional to 2,368.73, 3,553.09 and 725.29 is: 1,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.73 : 3,553.09 = 725.29 : x
  2. Step 2: Convert to fraction form
    2,368.73/3,553.09 = 725.29/x
  3. Step 3: Cross multiply
    2,368.73x = 3,553.09 × 725.29
  4. Step 4: Simplify right side
    2,368.73x = 2,577,009.95
  5. Step 5: Solve for x
    x = 2,577,009.95/2,368.73
  6. Step 6: Final answer
    x = 1,087.93

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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.