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Finding the Fourth Proportional to 30,692.72, 46,034.53 and 8,503.79

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Solution

The fourth proportional to 30,692.72, 46,034.53 and 8,503.79 is: 12,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692.72 : 46,034.53 = 8,503.79 : x
  2. Step 2: Convert to fraction form
    30,692.72/46,034.53 = 8,503.79/x
  3. Step 3: Cross multiply
    30,692.72x = 46,034.53 × 8,503.79
  4. Step 4: Simplify right side
    30,692.72x = 391,467,724.44
  5. Step 5: Solve for x
    x = 391,467,724.44/30,692.72
  6. Step 6: Final answer
    x = 12,754.42

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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.