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Finding the Fourth Proportional to 7,170.38, 10,745.85 and 5,328.44

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Solution

The fourth proportional to 7,170.38, 10,745.85 and 5,328.44 is: 7,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.38 : 10,745.85 = 5,328.44 : x
  2. Step 2: Convert to fraction form
    7,170.38/10,745.85 = 5,328.44/x
  3. Step 3: Cross multiply
    7,170.38x = 10,745.85 × 5,328.44
  4. Step 4: Simplify right side
    7,170.38x = 57,258,616.97
  5. Step 5: Solve for x
    x = 57,258,616.97/7,170.38
  6. Step 6: Final answer
    x = 7,985.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.