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Finding the Fourth Proportional to 19,394.91, 26,764.20 and 11,853.84

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Solution

The fourth proportional to 19,394.91, 26,764.20 and 11,853.84 is: 16,357.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,394.91 : 26,764.20 = 11,853.84 : x
  2. Step 2: Convert to fraction form
    19,394.91/26,764.20 = 11,853.84/x
  3. Step 3: Cross multiply
    19,394.91x = 26,764.20 × 11,853.84
  4. Step 4: Simplify right side
    19,394.91x = 317,258,544.53
  5. Step 5: Solve for x
    x = 317,258,544.53/19,394.91
  6. Step 6: Final answer
    x = 16,357.83

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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.