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Finding the Fourth Proportional to 13,075.97, 18,063.23 and 11,894.99

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Solution

The fourth proportional to 13,075.97, 18,063.23 and 11,894.99 is: 16,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.97 : 18,063.23 = 11,894.99 : x
  2. Step 2: Convert to fraction form
    13,075.97/18,063.23 = 11,894.99/x
  3. Step 3: Cross multiply
    13,075.97x = 18,063.23 × 11,894.99
  4. Step 4: Simplify right side
    13,075.97x = 214,861,790.43
  5. Step 5: Solve for x
    x = 214,861,790.43/13,075.97
  6. Step 6: Final answer
    x = 16,431.81

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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.