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Finding the Fourth Proportional to 17,891.21, 24,690.99 and 9,933.57

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Solution

The fourth proportional to 17,891.21, 24,690.99 and 9,933.57 is: 13,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.21 : 24,690.99 = 9,933.57 : x
  2. Step 2: Convert to fraction form
    17,891.21/24,690.99 = 9,933.57/x
  3. Step 3: Cross multiply
    17,891.21x = 24,690.99 × 9,933.57
  4. Step 4: Simplify right side
    17,891.21x = 245,269,677.53
  5. Step 5: Solve for x
    x = 245,269,677.53/17,891.21
  6. Step 6: Final answer
    x = 13,708.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.