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Finding the Fourth Proportional to 3,762.78, 5,633.70 and 2,835.48

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Solution

The fourth proportional to 3,762.78, 5,633.70 and 2,835.48 is: 4,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.78 : 5,633.70 = 2,835.48 : x
  2. Step 2: Convert to fraction form
    3,762.78/5,633.70 = 2,835.48/x
  3. Step 3: Cross multiply
    3,762.78x = 5,633.70 × 2,835.48
  4. Step 4: Simplify right side
    3,762.78x = 15,974,243.68
  5. Step 5: Solve for x
    x = 15,974,243.68/3,762.78
  6. Step 6: Final answer
    x = 4,245.33

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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.