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Finding the Fourth Proportional to 55,634.58, 83,462.81 and 20,574.54

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Solution

The fourth proportional to 55,634.58, 83,462.81 and 20,574.54 is: 30,865.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,634.58 : 83,462.81 = 20,574.54 : x
  2. Step 2: Convert to fraction form
    55,634.58/83,462.81 = 20,574.54/x
  3. Step 3: Cross multiply
    55,634.58x = 83,462.81 × 20,574.54
  4. Step 4: Simplify right side
    55,634.58x = 1,717,208,819.98
  5. Step 5: Solve for x
    x = 1,717,208,819.98/55,634.58
  6. Step 6: Final answer
    x = 30,865.85

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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.