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Finding the Fourth Proportional to 19,046.98, 28,570.17 and 5,195.98

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Solution

The fourth proportional to 19,046.98, 28,570.17 and 5,195.98 is: 7,793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,046.98 : 28,570.17 = 5,195.98 : x
  2. Step 2: Convert to fraction form
    19,046.98/28,570.17 = 5,195.98/x
  3. Step 3: Cross multiply
    19,046.98x = 28,570.17 × 5,195.98
  4. Step 4: Simplify right side
    19,046.98x = 148,450,012.43
  5. Step 5: Solve for x
    x = 148,450,012.43/19,046.98
  6. Step 6: Final answer
    x = 7,793.89

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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.