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Finding the Fourth Proportional to 5,280.60, 7,286.94 and 4,102.68

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Solution

The fourth proportional to 5,280.60, 7,286.94 and 4,102.68 is: 5,661.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.60 : 7,286.94 = 4,102.68 : x
  2. Step 2: Convert to fraction form
    5,280.60/7,286.94 = 4,102.68/x
  3. Step 3: Cross multiply
    5,280.60x = 7,286.94 × 4,102.68
  4. Step 4: Simplify right side
    5,280.60x = 29,895,983.00
  5. Step 5: Solve for x
    x = 29,895,983.00/5,280.60
  6. Step 6: Final answer
    x = 5,661.47

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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.