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Finding the Fourth Proportional to 17,147.40, 25,692.30 and 8,363.40

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Solution

The fourth proportional to 17,147.40, 25,692.30 and 8,363.40 is: 12,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,147.40 : 25,692.30 = 8,363.40 : x
  2. Step 2: Convert to fraction form
    17,147.40/25,692.30 = 8,363.40/x
  3. Step 3: Cross multiply
    17,147.40x = 25,692.30 × 8,363.40
  4. Step 4: Simplify right side
    17,147.40x = 214,874,981.82
  5. Step 5: Solve for x
    x = 214,874,981.82/17,147.40
  6. Step 6: Final answer
    x = 12,531.05

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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.