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Finding the Fourth Proportional to 3,675.96, 5,072.70 and 2,103.94

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Solution

The fourth proportional to 3,675.96, 5,072.70 and 2,103.94 is: 2,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.96 : 5,072.70 = 2,103.94 : x
  2. Step 2: Convert to fraction form
    3,675.96/5,072.70 = 2,103.94/x
  3. Step 3: Cross multiply
    3,675.96x = 5,072.70 × 2,103.94
  4. Step 4: Simplify right side
    3,675.96x = 10,672,656.44
  5. Step 5: Solve for x
    x = 10,672,656.44/3,675.96
  6. Step 6: Final answer
    x = 2,903.37

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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.