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Finding the Fourth Proportional to 18,341.94, 25,311.91 and 9,958.44

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Solution

The fourth proportional to 18,341.94, 25,311.91 and 9,958.44 is: 13,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.94 : 25,311.91 = 9,958.44 : x
  2. Step 2: Convert to fraction form
    18,341.94/25,311.91 = 9,958.44/x
  3. Step 3: Cross multiply
    18,341.94x = 25,311.91 × 9,958.44
  4. Step 4: Simplify right side
    18,341.94x = 252,067,137.02
  5. Step 5: Solve for x
    x = 252,067,137.02/18,341.94
  6. Step 6: Final answer
    x = 13,742.67

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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.