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Finding the Fourth Proportional to 55,791.92, 76,954.63 and 35,639.85

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Solution

The fourth proportional to 55,791.92, 76,954.63 and 35,639.85 is: 49,158.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,791.92 : 76,954.63 = 35,639.85 : x
  2. Step 2: Convert to fraction form
    55,791.92/76,954.63 = 35,639.85/x
  3. Step 3: Cross multiply
    55,791.92x = 76,954.63 × 35,639.85
  4. Step 4: Simplify right side
    55,791.92x = 2,742,651,470.01
  5. Step 5: Solve for x
    x = 2,742,651,470.01/55,791.92
  6. Step 6: Final answer
    x = 49,158.58

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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.