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Finding the Fourth Proportional to 43,365.80, 65,060.94 and 12,201.32

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Solution

The fourth proportional to 43,365.80, 65,060.94 and 12,201.32 is: 18,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,365.80 : 65,060.94 = 12,201.32 : x
  2. Step 2: Convert to fraction form
    43,365.80/65,060.94 = 12,201.32/x
  3. Step 3: Cross multiply
    43,365.80x = 65,060.94 × 12,201.32
  4. Step 4: Simplify right side
    43,365.80x = 793,829,348.44
  5. Step 5: Solve for x
    x = 793,829,348.44/43,365.80
  6. Step 6: Final answer
    x = 18,305.42

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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.