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Finding the Fourth Proportional to 38,694.53, 57,987.05 and 16,485.54

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Solution

The fourth proportional to 38,694.53, 57,987.05 and 16,485.54 is: 24,704.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,694.53 : 57,987.05 = 16,485.54 : x
  2. Step 2: Convert to fraction form
    38,694.53/57,987.05 = 16,485.54/x
  3. Step 3: Cross multiply
    38,694.53x = 57,987.05 × 16,485.54
  4. Step 4: Simplify right side
    38,694.53x = 955,947,749.83
  5. Step 5: Solve for x
    x = 955,947,749.83/38,694.53
  6. Step 6: Final answer
    x = 24,704.99

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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.