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Finding the Fourth Proportional to 19,709.00, 27,198.41 and 11,211.08

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Solution

The fourth proportional to 19,709.00, 27,198.41 and 11,211.08 is: 15,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709.00 : 27,198.41 = 11,211.08 : x
  2. Step 2: Convert to fraction form
    19,709.00/27,198.41 = 11,211.08/x
  3. Step 3: Cross multiply
    19,709.00x = 27,198.41 × 11,211.08
  4. Step 4: Simplify right side
    19,709.00x = 304,923,562.32
  5. Step 5: Solve for x
    x = 304,923,562.32/19,709.00
  6. Step 6: Final answer
    x = 15,471.29

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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.