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Finding the Fourth Proportional to 5,611.91, 7,745.13 and 3,374.96

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Solution

The fourth proportional to 5,611.91, 7,745.13 and 3,374.96 is: 4,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.91 : 7,745.13 = 3,374.96 : x
  2. Step 2: Convert to fraction form
    5,611.91/7,745.13 = 3,374.96/x
  3. Step 3: Cross multiply
    5,611.91x = 7,745.13 × 3,374.96
  4. Step 4: Simplify right side
    5,611.91x = 26,139,503.94
  5. Step 5: Solve for x
    x = 26,139,503.94/5,611.91
  6. Step 6: Final answer
    x = 4,657.86

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1.5x scale

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.