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Finding the Fourth Proportional to 4,893.21, 7,334.28 and 1,968.12

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Solution

The fourth proportional to 4,893.21, 7,334.28 and 1,968.12 is: 2,949.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,893.21 : 7,334.28 = 1,968.12 : x
  2. Step 2: Convert to fraction form
    4,893.21/7,334.28 = 1,968.12/x
  3. Step 3: Cross multiply
    4,893.21x = 7,334.28 × 1,968.12
  4. Step 4: Simplify right side
    4,893.21x = 14,434,743.15
  5. Step 5: Solve for x
    x = 14,434,743.15/4,893.21
  6. Step 6: Final answer
    x = 2,949.95

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1.5x scale

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.