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Finding the Fourth Proportional to 17,995.82, 26,992.76 and 5,515.88

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Solution

The fourth proportional to 17,995.82, 26,992.76 and 5,515.88 is: 8,273.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,995.82 : 26,992.76 = 5,515.88 : x
  2. Step 2: Convert to fraction form
    17,995.82/26,992.76 = 5,515.88/x
  3. Step 3: Cross multiply
    17,995.82x = 26,992.76 × 5,515.88
  4. Step 4: Simplify right side
    17,995.82x = 148,888,662.49
  5. Step 5: Solve for x
    x = 148,888,662.49/17,995.82
  6. Step 6: Final answer
    x = 8,273.52

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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.