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Finding the Fourth Proportional to 52,812.94, 79,163.70 and 19,511.68

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Solution

The fourth proportional to 52,812.94, 79,163.70 and 19,511.68 is: 29,246.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,812.94 : 79,163.70 = 19,511.68 : x
  2. Step 2: Convert to fraction form
    52,812.94/79,163.70 = 19,511.68/x
  3. Step 3: Cross multiply
    52,812.94x = 79,163.70 × 19,511.68
  4. Step 4: Simplify right side
    52,812.94x = 1,544,616,782.02
  5. Step 5: Solve for x
    x = 1,544,616,782.02/52,812.94
  6. Step 6: Final answer
    x = 29,246.94

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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.