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Finding the Fourth Proportional to 13,976.41, 20,950.03 and 5,662.16

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Solution

The fourth proportional to 13,976.41, 20,950.03 and 5,662.16 is: 8,487.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.41 : 20,950.03 = 5,662.16 : x
  2. Step 2: Convert to fraction form
    13,976.41/20,950.03 = 5,662.16/x
  3. Step 3: Cross multiply
    13,976.41x = 20,950.03 × 5,662.16
  4. Step 4: Simplify right side
    13,976.41x = 118,622,393.55
  5. Step 5: Solve for x
    x = 118,622,393.55/13,976.41
  6. Step 6: Final answer
    x = 8,487.33

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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.