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Finding the Fourth Proportional to 3,984.84, 5,499.56 and 2,412.96

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Solution

The fourth proportional to 3,984.84, 5,499.56 and 2,412.96 is: 3,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.84 : 5,499.56 = 2,412.96 : x
  2. Step 2: Convert to fraction form
    3,984.84/5,499.56 = 2,412.96/x
  3. Step 3: Cross multiply
    3,984.84x = 5,499.56 × 2,412.96
  4. Step 4: Simplify right side
    3,984.84x = 13,270,218.30
  5. Step 5: Solve for x
    x = 13,270,218.30/3,984.84
  6. Step 6: Final answer
    x = 3,330.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.