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Finding the Fourth Proportional to 17,408.99, 26,161.68 and 16,986.98

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Solution

The fourth proportional to 17,408.99, 26,161.68 and 16,986.98 is: 25,527.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,408.99 : 26,161.68 = 16,986.98 : x
  2. Step 2: Convert to fraction form
    17,408.99/26,161.68 = 16,986.98/x
  3. Step 3: Cross multiply
    17,408.99x = 26,161.68 × 16,986.98
  4. Step 4: Simplify right side
    17,408.99x = 444,407,934.93
  5. Step 5: Solve for x
    x = 444,407,934.93/17,408.99
  6. Step 6: Final answer
    x = 25,527.50

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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.