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Finding the Fourth Proportional to 17,190.36, 23,722.71 and 9,738.36

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Solution

The fourth proportional to 17,190.36, 23,722.71 and 9,738.36 is: 13,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,190.36 : 23,722.71 = 9,738.36 : x
  2. Step 2: Convert to fraction form
    17,190.36/23,722.71 = 9,738.36/x
  3. Step 3: Cross multiply
    17,190.36x = 23,722.71 × 9,738.36
  4. Step 4: Simplify right side
    17,190.36x = 231,020,290.16
  5. Step 5: Solve for x
    x = 231,020,290.16/17,190.36
  6. Step 6: Final answer
    x = 13,438.94

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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.