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Finding the Fourth Proportional to 17,369.80, 23,969.19 and 11,081.50

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Solution

The fourth proportional to 17,369.80, 23,969.19 and 11,081.50 is: 15,291.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,369.80 : 23,969.19 = 11,081.50 : x
  2. Step 2: Convert to fraction form
    17,369.80/23,969.19 = 11,081.50/x
  3. Step 3: Cross multiply
    17,369.80x = 23,969.19 × 11,081.50
  4. Step 4: Simplify right side
    17,369.80x = 265,614,578.99
  5. Step 5: Solve for x
    x = 265,614,578.99/17,369.80
  6. Step 6: Final answer
    x = 15,291.75

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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.