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Finding the Fourth Proportional to 3,972.16, 5,484.24 and 3,551.16

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Solution

The fourth proportional to 3,972.16, 5,484.24 and 3,551.16 is: 4,902.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.16 : 5,484.24 = 3,551.16 : x
  2. Step 2: Convert to fraction form
    3,972.16/5,484.24 = 3,551.16/x
  3. Step 3: Cross multiply
    3,972.16x = 5,484.24 × 3,551.16
  4. Step 4: Simplify right side
    3,972.16x = 19,475,413.72
  5. Step 5: Solve for x
    x = 19,475,413.72/3,972.16
  6. Step 6: Final answer
    x = 4,902.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.