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Finding the Fourth Proportional to 11,763.75, 17,645.63 and 3,555.75

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Solution

The fourth proportional to 11,763.75, 17,645.63 and 3,555.75 is: 5,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.75 : 17,645.63 = 3,555.75 : x
  2. Step 2: Convert to fraction form
    11,763.75/17,645.63 = 3,555.75/x
  3. Step 3: Cross multiply
    11,763.75x = 17,645.63 × 3,555.75
  4. Step 4: Simplify right side
    11,763.75x = 62,743,431.09
  5. Step 5: Solve for x
    x = 62,743,431.09/11,763.75
  6. Step 6: Final answer
    x = 5,333.63

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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.