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Finding the Fourth Proportional to 64,850.72, 89,498.10 and 36,558.23

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Solution

The fourth proportional to 64,850.72, 89,498.10 and 36,558.23 is: 50,452.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,850.72 : 89,498.10 = 36,558.23 : x
  2. Step 2: Convert to fraction form
    64,850.72/89,498.10 = 36,558.23/x
  3. Step 3: Cross multiply
    64,850.72x = 89,498.10 × 36,558.23
  4. Step 4: Simplify right side
    64,850.72x = 3,271,891,676.87
  5. Step 5: Solve for x
    x = 3,271,891,676.87/64,850.72
  6. Step 6: Final answer
    x = 50,452.67

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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.