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Finding the Fourth Proportional to 6,679.72, 9,218.37 and 4,027.51

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Solution

The fourth proportional to 6,679.72, 9,218.37 and 4,027.51 is: 5,558.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.72 : 9,218.37 = 4,027.51 : x
  2. Step 2: Convert to fraction form
    6,679.72/9,218.37 = 4,027.51/x
  3. Step 3: Cross multiply
    6,679.72x = 9,218.37 × 4,027.51
  4. Step 4: Simplify right side
    6,679.72x = 37,127,077.36
  5. Step 5: Solve for x
    x = 37,127,077.36/6,679.72
  6. Step 6: Final answer
    x = 5,558.18

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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.