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Finding the Fourth Proportional to 17,990.40, 26,950.52 and 10,952.96

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Solution

The fourth proportional to 17,990.40, 26,950.52 and 10,952.96 is: 16,408.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.40 : 26,950.52 = 10,952.96 : x
  2. Step 2: Convert to fraction form
    17,990.40/26,950.52 = 10,952.96/x
  3. Step 3: Cross multiply
    17,990.40x = 26,950.52 × 10,952.96
  4. Step 4: Simplify right side
    17,990.40x = 295,187,973.87
  5. Step 5: Solve for x
    x = 295,187,973.87/17,990.40
  6. Step 6: Final answer
    x = 16,408.09

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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.