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Finding the Fourth Proportional to 51,134.76, 76,676.16 and 23,409

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Solution

The fourth proportional to 51,134.76, 76,676.16 and 23,409 is: 35,101.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,134.76 : 76,676.16 = 23,409 : x
  2. Step 2: Convert to fraction form
    51,134.76/76,676.16 = 23,409/x
  3. Step 3: Cross multiply
    51,134.76x = 76,676.16 × 23,409
  4. Step 4: Simplify right side
    51,134.76x = 1,794,912,229.44
  5. Step 5: Solve for x
    x = 1,794,912,229.44/51,134.76
  6. Step 6: Final answer
    x = 35,101.61

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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.