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Finding the Fourth Proportional to 17,811.09, 26,716.89 and 7,950.93

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Solution

The fourth proportional to 17,811.09, 26,716.89 and 7,950.93 is: 11,926.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.09 : 26,716.89 = 7,950.93 : x
  2. Step 2: Convert to fraction form
    17,811.09/26,716.89 = 7,950.93/x
  3. Step 3: Cross multiply
    17,811.09x = 26,716.89 × 7,950.93
  4. Step 4: Simplify right side
    17,811.09x = 212,424,122.21
  5. Step 5: Solve for x
    x = 212,424,122.21/17,811.09
  6. Step 6: Final answer
    x = 11,926.51

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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.