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Finding the Fourth Proportional to 57,272, 79,069.92 and 37,434.56

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Solution

The fourth proportional to 57,272, 79,069.92 and 37,434.56 is: 51,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272 : 79,069.92 = 37,434.56 : x
  2. Step 2: Convert to fraction form
    57,272/79,069.92 = 37,434.56/x
  3. Step 3: Cross multiply
    57,272x = 79,069.92 × 37,434.56
  4. Step 4: Simplify right side
    57,272x = 2,959,947,664.44
  5. Step 5: Solve for x
    x = 2,959,947,664.44/57,272
  6. Step 6: Final answer
    x = 51,682.28

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Why These Related Problems?

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