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Finding the Fourth Proportional to 3,109.32, 4,309.32 and 3,051

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Solution

The fourth proportional to 3,109.32, 4,309.32 and 3,051 is: 4,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.32 : 4,309.32 = 3,051 : x
  2. Step 2: Convert to fraction form
    3,109.32/4,309.32 = 3,051/x
  3. Step 3: Cross multiply
    3,109.32x = 4,309.32 × 3,051
  4. Step 4: Simplify right side
    3,109.32x = 13,147,735.32
  5. Step 5: Solve for x
    x = 13,147,735.32/3,109.32
  6. Step 6: Final answer
    x = 4,228.49

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.