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Finding the Fourth Proportional to 43,549.52, 65,313.24 and 11,959.64

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Solution

The fourth proportional to 43,549.52, 65,313.24 and 11,959.64 is: 17,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,549.52 : 65,313.24 = 11,959.64 : x
  2. Step 2: Convert to fraction form
    43,549.52/65,313.24 = 11,959.64/x
  3. Step 3: Cross multiply
    43,549.52x = 65,313.24 × 11,959.64
  4. Step 4: Simplify right side
    43,549.52x = 781,122,837.63
  5. Step 5: Solve for x
    x = 781,122,837.63/43,549.52
  6. Step 6: Final answer
    x = 17,936.43

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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.