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Finding the Fourth Proportional to 8,954.32, 13,413.03 and 5,245.31

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Solution

The fourth proportional to 8,954.32, 13,413.03 and 5,245.31 is: 7,857.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,954.32 : 13,413.03 = 5,245.31 : x
  2. Step 2: Convert to fraction form
    8,954.32/13,413.03 = 5,245.31/x
  3. Step 3: Cross multiply
    8,954.32x = 13,413.03 × 5,245.31
  4. Step 4: Simplify right side
    8,954.32x = 70,355,438.80
  5. Step 5: Solve for x
    x = 70,355,438.80/8,954.32
  6. Step 6: Final answer
    x = 7,857.15

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1.5x scale

Why These Related Problems?

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