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Finding the Fourth Proportional to 16,530.87, 24,791.04 and 5,435.01

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Solution

The fourth proportional to 16,530.87, 24,791.04 and 5,435.01 is: 8,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.87 : 24,791.04 = 5,435.01 : x
  2. Step 2: Convert to fraction form
    16,530.87/24,791.04 = 5,435.01/x
  3. Step 3: Cross multiply
    16,530.87x = 24,791.04 × 5,435.01
  4. Step 4: Simplify right side
    16,530.87x = 134,739,550.31
  5. Step 5: Solve for x
    x = 134,739,550.31/16,530.87
  6. Step 6: Final answer
    x = 8,150.78

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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.