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Finding the Fourth Proportional to 52,813.98, 79,223.49 and 13,371.42

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Solution

The fourth proportional to 52,813.98, 79,223.49 and 13,371.42 is: 20,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,813.98 : 79,223.49 = 13,371.42 : x
  2. Step 2: Convert to fraction form
    52,813.98/79,223.49 = 13,371.42/x
  3. Step 3: Cross multiply
    52,813.98x = 79,223.49 × 13,371.42
  4. Step 4: Simplify right side
    52,813.98x = 1,059,330,558.66
  5. Step 5: Solve for x
    x = 1,059,330,558.66/52,813.98
  6. Step 6: Final answer
    x = 20,057.77

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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.