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Finding the Fourth Proportional to 18,704.98, 28,049.26 and 7,010

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Solution

The fourth proportional to 18,704.98, 28,049.26 and 7,010 is: 10,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.98 : 28,049.26 = 7,010 : x
  2. Step 2: Convert to fraction form
    18,704.98/28,049.26 = 7,010/x
  3. Step 3: Cross multiply
    18,704.98x = 28,049.26 × 7,010
  4. Step 4: Simplify right side
    18,704.98x = 196,625,312.60
  5. Step 5: Solve for x
    x = 196,625,312.60/18,704.98
  6. Step 6: Final answer
    x = 10,511.92

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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.