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Finding the Fourth Proportional to 4,933.04, 7,408.97 and 2,857.21

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Solution

The fourth proportional to 4,933.04, 7,408.97 and 2,857.21 is: 4,291.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,933.04 : 7,408.97 = 2,857.21 : x
  2. Step 2: Convert to fraction form
    4,933.04/7,408.97 = 2,857.21/x
  3. Step 3: Cross multiply
    4,933.04x = 7,408.97 × 2,857.21
  4. Step 4: Simplify right side
    4,933.04x = 21,168,961.08
  5. Step 5: Solve for x
    x = 21,168,961.08/4,933.04
  6. Step 6: Final answer
    x = 4,291.27

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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.