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Finding the Fourth Proportional to 69,336.60, 104,020.49 and 21,954.52

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Solution

The fourth proportional to 69,336.60, 104,020.49 and 21,954.52 is: 32,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,336.60 : 104,020.49 = 21,954.52 : x
  2. Step 2: Convert to fraction form
    69,336.60/104,020.49 = 21,954.52/x
  3. Step 3: Cross multiply
    69,336.60x = 104,020.49 × 21,954.52
  4. Step 4: Simplify right side
    69,336.60x = 2,283,719,818.34
  5. Step 5: Solve for x
    x = 2,283,719,818.34/69,336.60
  6. Step 6: Final answer
    x = 32,936.72

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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.