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Finding the Fourth Proportional to 14,016.58, 20,982.87 and 13,518.11

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Solution

The fourth proportional to 14,016.58, 20,982.87 and 13,518.11 is: 20,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.58 : 20,982.87 = 13,518.11 : x
  2. Step 2: Convert to fraction form
    14,016.58/20,982.87 = 13,518.11/x
  3. Step 3: Cross multiply
    14,016.58x = 20,982.87 × 13,518.11
  4. Step 4: Simplify right side
    14,016.58x = 283,648,797.23
  5. Step 5: Solve for x
    x = 283,648,797.23/14,016.58
  6. Step 6: Final answer
    x = 20,236.67

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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.