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Finding the Fourth Proportional to 13,255.88, 19,884.63 and 4,021.88

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Solution

The fourth proportional to 13,255.88, 19,884.63 and 4,021.88 is: 6,033.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.88 : 19,884.63 = 4,021.88 : x
  2. Step 2: Convert to fraction form
    13,255.88/19,884.63 = 4,021.88/x
  3. Step 3: Cross multiply
    13,255.88x = 19,884.63 × 4,021.88
  4. Step 4: Simplify right side
    13,255.88x = 79,973,496.28
  5. Step 5: Solve for x
    x = 79,973,496.28/13,255.88
  6. Step 6: Final answer
    x = 6,033.06

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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.