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Finding the Fourth Proportional to 52,503.80, 78,744.60 and 19,239.44

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Solution

The fourth proportional to 52,503.80, 78,744.60 and 19,239.44 is: 28,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,503.80 : 78,744.60 = 19,239.44 : x
  2. Step 2: Convert to fraction form
    52,503.80/78,744.60 = 19,239.44/x
  3. Step 3: Cross multiply
    52,503.80x = 78,744.60 × 19,239.44
  4. Step 4: Simplify right side
    52,503.80x = 1,515,002,007.02
  5. Step 5: Solve for x
    x = 1,515,002,007.02/52,503.80
  6. Step 6: Final answer
    x = 28,855.09

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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.