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Finding the Fourth Proportional to 51,195.33, 76,787.80 and 13,750.54

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Solution

The fourth proportional to 51,195.33, 76,787.80 and 13,750.54 is: 20,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,195.33 : 76,787.80 = 13,750.54 : x
  2. Step 2: Convert to fraction form
    51,195.33/76,787.80 = 13,750.54/x
  3. Step 3: Cross multiply
    51,195.33x = 76,787.80 × 13,750.54
  4. Step 4: Simplify right side
    51,195.33x = 1,055,873,489.07
  5. Step 5: Solve for x
    x = 1,055,873,489.07/51,195.33
  6. Step 6: Final answer
    x = 20,624.41

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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.