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Finding the Fourth Proportional to 13,923.10, 20,873.81 and 9,469.11

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Solution

The fourth proportional to 13,923.10, 20,873.81 and 9,469.11 is: 14,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.10 : 20,873.81 = 9,469.11 : x
  2. Step 2: Convert to fraction form
    13,923.10/20,873.81 = 9,469.11/x
  3. Step 3: Cross multiply
    13,923.10x = 20,873.81 × 9,469.11
  4. Step 4: Simplify right side
    13,923.10x = 197,656,426.68
  5. Step 5: Solve for x
    x = 197,656,426.68/13,923.10
  6. Step 6: Final answer
    x = 14,196.30

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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.