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Finding the Fourth Proportional to 3,635.07, 5,454.42 and 1,448.07

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Solution

The fourth proportional to 3,635.07, 5,454.42 and 1,448.07 is: 2,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.07 : 5,454.42 = 1,448.07 : x
  2. Step 2: Convert to fraction form
    3,635.07/5,454.42 = 1,448.07/x
  3. Step 3: Cross multiply
    3,635.07x = 5,454.42 × 1,448.07
  4. Step 4: Simplify right side
    3,635.07x = 7,898,381.97
  5. Step 5: Solve for x
    x = 7,898,381.97/3,635.07
  6. Step 6: Final answer
    x = 2,172.83

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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.