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Finding the Fourth Proportional to 7,930.98, 11,898.21 and 2,384.82

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Solution

The fourth proportional to 7,930.98, 11,898.21 and 2,384.82 is: 3,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.98 : 11,898.21 = 2,384.82 : x
  2. Step 2: Convert to fraction form
    7,930.98/11,898.21 = 2,384.82/x
  3. Step 3: Cross multiply
    7,930.98x = 11,898.21 × 2,384.82
  4. Step 4: Simplify right side
    7,930.98x = 28,375,089.17
  5. Step 5: Solve for x
    x = 28,375,089.17/7,930.98
  6. Step 6: Final answer
    x = 3,577.75

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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.