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Finding the Fourth Proportional to 35,791.89, 49,393.41 and 19,660.70

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Solution

The fourth proportional to 35,791.89, 49,393.41 and 19,660.70 is: 27,132.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,791.89 : 49,393.41 = 19,660.70 : x
  2. Step 2: Convert to fraction form
    35,791.89/49,393.41 = 19,660.70/x
  3. Step 3: Cross multiply
    35,791.89x = 49,393.41 × 19,660.70
  4. Step 4: Simplify right side
    35,791.89x = 971,108,719.87
  5. Step 5: Solve for x
    x = 971,108,719.87/35,791.89
  6. Step 6: Final answer
    x = 27,132.09

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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.