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Finding the Fourth Proportional to 65,234.44, 90,023.88 and 36,945.64

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Solution

The fourth proportional to 65,234.44, 90,023.88 and 36,945.64 is: 50,985.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,234.44 : 90,023.88 = 36,945.64 : x
  2. Step 2: Convert to fraction form
    65,234.44/90,023.88 = 36,945.64/x
  3. Step 3: Cross multiply
    65,234.44x = 90,023.88 × 36,945.64
  4. Step 4: Simplify right side
    65,234.44x = 3,325,989,861.88
  5. Step 5: Solve for x
    x = 3,325,989,861.88/65,234.44
  6. Step 6: Final answer
    x = 50,985.18

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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.