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Finding the Fourth Proportional to 51,252.68, 76,879.72 and 17,973.71

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Solution

The fourth proportional to 51,252.68, 76,879.72 and 17,973.71 is: 26,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,252.68 : 76,879.72 = 17,973.71 : x
  2. Step 2: Convert to fraction form
    51,252.68/76,879.72 = 17,973.71/x
  3. Step 3: Cross multiply
    51,252.68x = 76,879.72 × 17,973.71
  4. Step 4: Simplify right side
    51,252.68x = 1,381,814,049.87
  5. Step 5: Solve for x
    x = 1,381,814,049.87/51,252.68
  6. Step 6: Final answer
    x = 26,960.81

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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.