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Finding the Fourth Proportional to 3,962.82, 5,468.46 and 2,194.40

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Solution

The fourth proportional to 3,962.82, 5,468.46 and 2,194.40 is: 3,028.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.82 : 5,468.46 = 2,194.40 : x
  2. Step 2: Convert to fraction form
    3,962.82/5,468.46 = 2,194.40/x
  3. Step 3: Cross multiply
    3,962.82x = 5,468.46 × 2,194.40
  4. Step 4: Simplify right side
    3,962.82x = 11,999,988.62
  5. Step 5: Solve for x
    x = 11,999,988.62/3,962.82
  6. Step 6: Final answer
    x = 3,028.14

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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.