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Finding the Fourth Proportional to 19,392.62, 26,764.70 and 11,843.29

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Solution

The fourth proportional to 19,392.62, 26,764.70 and 11,843.29 is: 16,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.62 : 26,764.70 = 11,843.29 : x
  2. Step 2: Convert to fraction form
    19,392.62/26,764.70 = 11,843.29/x
  3. Step 3: Cross multiply
    19,392.62x = 26,764.70 × 11,843.29
  4. Step 4: Simplify right side
    19,392.62x = 316,982,102.75
  5. Step 5: Solve for x
    x = 316,982,102.75/19,392.62
  6. Step 6: Final answer
    x = 16,345.51

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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.