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Finding the Fourth Proportional to 51,262.70, 76,879.65 and 16,213.10

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Solution

The fourth proportional to 51,262.70, 76,879.65 and 16,213.10 is: 24,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,262.70 : 76,879.65 = 16,213.10 : x
  2. Step 2: Convert to fraction form
    51,262.70/76,879.65 = 16,213.10/x
  3. Step 3: Cross multiply
    51,262.70x = 76,879.65 × 16,213.10
  4. Step 4: Simplify right side
    51,262.70x = 1,246,457,453.42
  5. Step 5: Solve for x
    x = 1,246,457,453.42/51,262.70
  6. Step 6: Final answer
    x = 24,315.10

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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.