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Finding the Fourth Proportional to 18,692.44, 28,038.76 and 4,841.44

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Solution

The fourth proportional to 18,692.44, 28,038.76 and 4,841.44 is: 7,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.44 : 28,038.76 = 4,841.44 : x
  2. Step 2: Convert to fraction form
    18,692.44/28,038.76 = 4,841.44/x
  3. Step 3: Cross multiply
    18,692.44x = 28,038.76 × 4,841.44
  4. Step 4: Simplify right side
    18,692.44x = 135,747,974.21
  5. Step 5: Solve for x
    x = 135,747,974.21/18,692.44
  6. Step 6: Final answer
    x = 7,262.19

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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.