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Finding the Fourth Proportional to 17,995.79, 26,993.97 and 5,515.97

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Solution

The fourth proportional to 17,995.79, 26,993.97 and 5,515.97 is: 8,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,995.79 : 26,993.97 = 5,515.97 : x
  2. Step 2: Convert to fraction form
    17,995.79/26,993.97 = 5,515.97/x
  3. Step 3: Cross multiply
    17,995.79x = 26,993.97 × 5,515.97
  4. Step 4: Simplify right side
    17,995.79x = 148,897,928.70
  5. Step 5: Solve for x
    x = 148,897,928.70/17,995.79
  6. Step 6: Final answer
    x = 8,274.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.