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Finding the Fourth Proportional to 3,399.48, 5,118 and 2,663.01

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Solution

The fourth proportional to 3,399.48, 5,118 and 2,663.01 is: 4,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.48 : 5,118 = 2,663.01 : x
  2. Step 2: Convert to fraction form
    3,399.48/5,118 = 2,663.01/x
  3. Step 3: Cross multiply
    3,399.48x = 5,118 × 2,663.01
  4. Step 4: Simplify right side
    3,399.48x = 13,629,285.18
  5. Step 5: Solve for x
    x = 13,629,285.18/3,399.48
  6. Step 6: Final answer
    x = 4,009.23

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.