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Finding the Fourth Proportional to 2,673.84, 4,005.32 and 2,182

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Solution

The fourth proportional to 2,673.84, 4,005.32 and 2,182 is: 3,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.84 : 4,005.32 = 2,182 : x
  2. Step 2: Convert to fraction form
    2,673.84/4,005.32 = 2,182/x
  3. Step 3: Cross multiply
    2,673.84x = 4,005.32 × 2,182
  4. Step 4: Simplify right side
    2,673.84x = 8,739,608.24
  5. Step 5: Solve for x
    x = 8,739,608.24/2,673.84
  6. Step 6: Final answer
    x = 3,268.56

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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.