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Finding the Fourth Proportional to 37,107.20, 51,212.40 and 21,196.64

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Solution

The fourth proportional to 37,107.20, 51,212.40 and 21,196.64 is: 29,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,107.20 : 51,212.40 = 21,196.64 : x
  2. Step 2: Convert to fraction form
    37,107.20/51,212.40 = 21,196.64/x
  3. Step 3: Cross multiply
    37,107.20x = 51,212.40 × 21,196.64
  4. Step 4: Simplify right side
    37,107.20x = 1,085,530,806.34
  5. Step 5: Solve for x
    x = 1,085,530,806.34/37,107.20
  6. Step 6: Final answer
    x = 29,253.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.