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Finding the Fourth Proportional to 3,558.48, 4,911.48 and 2,162.04

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Solution

The fourth proportional to 3,558.48, 4,911.48 and 2,162.04 is: 2,984.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.48 : 4,911.48 = 2,162.04 : x
  2. Step 2: Convert to fraction form
    3,558.48/4,911.48 = 2,162.04/x
  3. Step 3: Cross multiply
    3,558.48x = 4,911.48 × 2,162.04
  4. Step 4: Simplify right side
    3,558.48x = 10,618,816.22
  5. Step 5: Solve for x
    x = 10,618,816.22/3,558.48
  6. Step 6: Final answer
    x = 2,984.09

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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.