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Finding the Fourth Proportional to 17,993.79, 26,990.97 and 5,513.97

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Solution

The fourth proportional to 17,993.79, 26,990.97 and 5,513.97 is: 8,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,993.79 : 26,990.97 = 5,513.97 : x
  2. Step 2: Convert to fraction form
    17,993.79/26,990.97 = 5,513.97/x
  3. Step 3: Cross multiply
    17,993.79x = 26,990.97 × 5,513.97
  4. Step 4: Simplify right side
    17,993.79x = 148,827,398.85
  5. Step 5: Solve for x
    x = 148,827,398.85/17,993.79
  6. Step 6: Final answer
    x = 8,271.04

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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.