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Finding the Fourth Proportional to 43,367.80, 65,063.94 and 12,203.32

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Solution

The fourth proportional to 43,367.80, 65,063.94 and 12,203.32 is: 18,308.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,367.80 : 65,063.94 = 12,203.32 : x
  2. Step 2: Convert to fraction form
    43,367.80/65,063.94 = 12,203.32/x
  3. Step 3: Cross multiply
    43,367.80x = 65,063.94 × 12,203.32
  4. Step 4: Simplify right side
    43,367.80x = 793,996,080.28
  5. Step 5: Solve for x
    x = 793,996,080.28/43,367.80
  6. Step 6: Final answer
    x = 18,308.42

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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.