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Finding the Fourth Proportional to 57,884.98, 86,826.98 and 45,245.37

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Solution

The fourth proportional to 57,884.98, 86,826.98 and 45,245.37 is: 67,867.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,884.98 : 86,826.98 = 45,245.37 : x
  2. Step 2: Convert to fraction form
    57,884.98/86,826.98 = 45,245.37/x
  3. Step 3: Cross multiply
    57,884.98x = 86,826.98 × 45,245.37
  4. Step 4: Simplify right side
    57,884.98x = 3,928,518,609.86
  5. Step 5: Solve for x
    x = 3,928,518,609.86/57,884.98
  6. Step 6: Final answer
    x = 67,867.67

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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.