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Finding the Fourth Proportional to 49,959.88, 74,917.92 and 18,773.24

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Solution

The fourth proportional to 49,959.88, 74,917.92 and 18,773.24 is: 28,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,959.88 : 74,917.92 = 18,773.24 : x
  2. Step 2: Convert to fraction form
    49,959.88/74,917.92 = 18,773.24/x
  3. Step 3: Cross multiply
    49,959.88x = 74,917.92 × 18,773.24
  4. Step 4: Simplify right side
    49,959.88x = 1,406,452,092.46
  5. Step 5: Solve for x
    x = 1,406,452,092.46/49,959.88
  6. Step 6: Final answer
    x = 28,151.63

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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.