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Finding the Fourth Proportional to 19,651.23, 27,127.08 and 11,694.21

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Solution

The fourth proportional to 19,651.23, 27,127.08 and 11,694.21 is: 16,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.23 : 27,127.08 = 11,694.21 : x
  2. Step 2: Convert to fraction form
    19,651.23/27,127.08 = 11,694.21/x
  3. Step 3: Cross multiply
    19,651.23x = 27,127.08 × 11,694.21
  4. Step 4: Simplify right side
    19,651.23x = 317,229,770.21
  5. Step 5: Solve for x
    x = 317,229,770.21/19,651.23
  6. Step 6: Final answer
    x = 16,143.00

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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.