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Finding the Fourth Proportional to 55,791.16, 83,692 and 18,351.54

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Solution

The fourth proportional to 55,791.16, 83,692 and 18,351.54 is: 27,529.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,791.16 : 83,692 = 18,351.54 : x
  2. Step 2: Convert to fraction form
    55,791.16/83,692 = 18,351.54/x
  3. Step 3: Cross multiply
    55,791.16x = 83,692 × 18,351.54
  4. Step 4: Simplify right side
    55,791.16x = 1,535,877,085.68
  5. Step 5: Solve for x
    x = 1,535,877,085.68/55,791.16
  6. Step 6: Final answer
    x = 27,529.04

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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.