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Finding the Fourth Proportional to 16,765.25, 25,150.10 and 5,516.87

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Solution

The fourth proportional to 16,765.25, 25,150.10 and 5,516.87 is: 8,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,765.25 : 25,150.10 = 5,516.87 : x
  2. Step 2: Convert to fraction form
    16,765.25/25,150.10 = 5,516.87/x
  3. Step 3: Cross multiply
    16,765.25x = 25,150.10 × 5,516.87
  4. Step 4: Simplify right side
    16,765.25x = 138,749,678.85
  5. Step 5: Solve for x
    x = 138,749,678.85/16,765.25
  6. Step 6: Final answer
    x = 8,276.03

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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.