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Finding the Fourth Proportional to 3,893.33, 5,372.94 and 2,214.89

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Solution

The fourth proportional to 3,893.33, 5,372.94 and 2,214.89 is: 3,056.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.33 : 5,372.94 = 2,214.89 : x
  2. Step 2: Convert to fraction form
    3,893.33/5,372.94 = 2,214.89/x
  3. Step 3: Cross multiply
    3,893.33x = 5,372.94 × 2,214.89
  4. Step 4: Simplify right side
    3,893.33x = 11,900,444.21
  5. Step 5: Solve for x
    x = 11,900,444.21/3,893.33
  6. Step 6: Final answer
    x = 3,056.63

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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.