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Finding the Fourth Proportional to 19,793.83, 27,315.92 and 11,295.78

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Solution

The fourth proportional to 19,793.83, 27,315.92 and 11,295.78 is: 15,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.83 : 27,315.92 = 11,295.78 : x
  2. Step 2: Convert to fraction form
    19,793.83/27,315.92 = 11,295.78/x
  3. Step 3: Cross multiply
    19,793.83x = 27,315.92 × 11,295.78
  4. Step 4: Simplify right side
    19,793.83x = 308,554,486.24
  5. Step 5: Solve for x
    x = 308,554,486.24/19,793.83
  6. Step 6: Final answer
    x = 15,588.42

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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.