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Finding the Fourth Proportional to 3,438.51, 4,745.01 and 1,866.57

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Solution

The fourth proportional to 3,438.51, 4,745.01 and 1,866.57 is: 2,575.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.51 : 4,745.01 = 1,866.57 : x
  2. Step 2: Convert to fraction form
    3,438.51/4,745.01 = 1,866.57/x
  3. Step 3: Cross multiply
    3,438.51x = 4,745.01 × 1,866.57
  4. Step 4: Simplify right side
    3,438.51x = 8,856,893.32
  5. Step 5: Solve for x
    x = 8,856,893.32/3,438.51
  6. Step 6: Final answer
    x = 2,575.79

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.