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Finding the Fourth Proportional to 14,817.87, 20,450.09 and 8,849.49

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Solution

The fourth proportional to 14,817.87, 20,450.09 and 8,849.49 is: 12,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.87 : 20,450.09 = 8,849.49 : x
  2. Step 2: Convert to fraction form
    14,817.87/20,450.09 = 8,849.49/x
  3. Step 3: Cross multiply
    14,817.87x = 20,450.09 × 8,849.49
  4. Step 4: Simplify right side
    14,817.87x = 180,972,866.95
  5. Step 5: Solve for x
    x = 180,972,866.95/14,817.87
  6. Step 6: Final answer
    x = 12,213.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.