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Finding the Fourth Proportional to 16,751.68, 25,134.09 and 7,386.64

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Solution

The fourth proportional to 16,751.68, 25,134.09 and 7,386.64 is: 11,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,751.68 : 25,134.09 = 7,386.64 : x
  2. Step 2: Convert to fraction form
    16,751.68/25,134.09 = 7,386.64/x
  3. Step 3: Cross multiply
    16,751.68x = 25,134.09 × 7,386.64
  4. Step 4: Simplify right side
    16,751.68x = 185,656,474.56
  5. Step 5: Solve for x
    x = 185,656,474.56/16,751.68
  6. Step 6: Final answer
    x = 11,082.86

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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.