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Finding the Fourth Proportional to 13,763.03, 18,993.15 and 7,794.59

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Solution

The fourth proportional to 13,763.03, 18,993.15 and 7,794.59 is: 10,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.03 : 18,993.15 = 7,794.59 : x
  2. Step 2: Convert to fraction form
    13,763.03/18,993.15 = 7,794.59/x
  3. Step 3: Cross multiply
    13,763.03x = 18,993.15 × 7,794.59
  4. Step 4: Simplify right side
    13,763.03x = 148,043,722.09
  5. Step 5: Solve for x
    x = 148,043,722.09/13,763.03
  6. Step 6: Final answer
    x = 10,756.63

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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.