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Finding the Fourth Proportional to 5,372.37, 7,413.76 and 2,982.20

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Solution

The fourth proportional to 5,372.37, 7,413.76 and 2,982.20 is: 4,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.37 : 7,413.76 = 2,982.20 : x
  2. Step 2: Convert to fraction form
    5,372.37/7,413.76 = 2,982.20/x
  3. Step 3: Cross multiply
    5,372.37x = 7,413.76 × 2,982.20
  4. Step 4: Simplify right side
    5,372.37x = 22,109,300.16
  5. Step 5: Solve for x
    x = 22,109,300.16/5,372.37
  6. Step 6: Final answer
    x = 4,115.37

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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.