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Finding the Fourth Proportional to 43,635.60, 65,454.81 and 12,048.03

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Solution

The fourth proportional to 43,635.60, 65,454.81 and 12,048.03 is: 18,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,635.60 : 65,454.81 = 12,048.03 : x
  2. Step 2: Convert to fraction form
    43,635.60/65,454.81 = 12,048.03/x
  3. Step 3: Cross multiply
    43,635.60x = 65,454.81 × 12,048.03
  4. Step 4: Simplify right side
    43,635.60x = 788,601,514.52
  5. Step 5: Solve for x
    x = 788,601,514.52/43,635.60
  6. Step 6: Final answer
    x = 18,072.43

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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.