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Finding the Fourth Proportional to 18,651.52, 27,977.52 and 4,800.52

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Solution

The fourth proportional to 18,651.52, 27,977.52 and 4,800.52 is: 7,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.52 : 27,977.52 = 4,800.52 : x
  2. Step 2: Convert to fraction form
    18,651.52/27,977.52 = 4,800.52/x
  3. Step 3: Cross multiply
    18,651.52x = 27,977.52 × 4,800.52
  4. Step 4: Simplify right side
    18,651.52x = 134,306,644.31
  5. Step 5: Solve for x
    x = 134,306,644.31/18,651.52
  6. Step 6: Final answer
    x = 7,200.84

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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.