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Finding the Fourth Proportional to 3,755.94, 5,635.20 and 1,416.61

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Solution

The fourth proportional to 3,755.94, 5,635.20 and 1,416.61 is: 2,125.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.94 : 5,635.20 = 1,416.61 : x
  2. Step 2: Convert to fraction form
    3,755.94/5,635.20 = 1,416.61/x
  3. Step 3: Cross multiply
    3,755.94x = 5,635.20 × 1,416.61
  4. Step 4: Simplify right side
    3,755.94x = 7,982,893.03
  5. Step 5: Solve for x
    x = 7,982,893.03/3,755.94
  6. Step 6: Final answer
    x = 2,125.41

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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.