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Finding the Fourth Proportional to 43,679.63, 65,480.65 and 17,019.44

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Solution

The fourth proportional to 43,679.63, 65,480.65 and 17,019.44 is: 25,514.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.63 : 65,480.65 = 17,019.44 : x
  2. Step 2: Convert to fraction form
    43,679.63/65,480.65 = 17,019.44/x
  3. Step 3: Cross multiply
    43,679.63x = 65,480.65 × 17,019.44
  4. Step 4: Simplify right side
    43,679.63x = 1,114,443,993.84
  5. Step 5: Solve for x
    x = 1,114,443,993.84/43,679.63
  6. Step 6: Final answer
    x = 25,514.04

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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.