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Finding the Fourth Proportional to 5,105.28, 7,054.08 and 4,065.60

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Solution

The fourth proportional to 5,105.28, 7,054.08 and 4,065.60 is: 5,617.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,105.28 : 7,054.08 = 4,065.60 : x
  2. Step 2: Convert to fraction form
    5,105.28/7,054.08 = 4,065.60/x
  3. Step 3: Cross multiply
    5,105.28x = 7,054.08 × 4,065.60
  4. Step 4: Simplify right side
    5,105.28x = 28,679,067.65
  5. Step 5: Solve for x
    x = 28,679,067.65/5,105.28
  6. Step 6: Final answer
    x = 5,617.53

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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.