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Finding the Fourth Proportional to 19,238.58, 28,855.10 and 5,199.41

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Solution

The fourth proportional to 19,238.58, 28,855.10 and 5,199.41 is: 7,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.58 : 28,855.10 = 5,199.41 : x
  2. Step 2: Convert to fraction form
    19,238.58/28,855.10 = 5,199.41/x
  3. Step 3: Cross multiply
    19,238.58x = 28,855.10 × 5,199.41
  4. Step 4: Simplify right side
    19,238.58x = 150,029,495.49
  5. Step 5: Solve for x
    x = 150,029,495.49/19,238.58
  6. Step 6: Final answer
    x = 7,798.37

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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.