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Finding the Fourth Proportional to 13,914.11, 20,866.36 and 9,258.62

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Solution

The fourth proportional to 13,914.11, 20,866.36 and 9,258.62 is: 13,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.11 : 20,866.36 = 9,258.62 : x
  2. Step 2: Convert to fraction form
    13,914.11/20,866.36 = 9,258.62/x
  3. Step 3: Cross multiply
    13,914.11x = 20,866.36 × 9,258.62
  4. Step 4: Simplify right side
    13,914.11x = 193,193,698.02
  5. Step 5: Solve for x
    x = 193,193,698.02/13,914.11
  6. Step 6: Final answer
    x = 13,884.73

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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.