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Finding the Fourth Proportional to 5,773.98, 7,968.15 and 3,121.44

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Solution

The fourth proportional to 5,773.98, 7,968.15 and 3,121.44 is: 4,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,773.98 : 7,968.15 = 3,121.44 : x
  2. Step 2: Convert to fraction form
    5,773.98/7,968.15 = 3,121.44/x
  3. Step 3: Cross multiply
    5,773.98x = 7,968.15 × 3,121.44
  4. Step 4: Simplify right side
    5,773.98x = 24,872,102.14
  5. Step 5: Solve for x
    x = 24,872,102.14/5,773.98
  6. Step 6: Final answer
    x = 4,307.62

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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.