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Finding the Fourth Proportional to 6,622.74, 9,922.45 and 3,495.86

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Solution

The fourth proportional to 6,622.74, 9,922.45 and 3,495.86 is: 5,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.74 : 9,922.45 = 3,495.86 : x
  2. Step 2: Convert to fraction form
    6,622.74/9,922.45 = 3,495.86/x
  3. Step 3: Cross multiply
    6,622.74x = 9,922.45 × 3,495.86
  4. Step 4: Simplify right side
    6,622.74x = 34,687,481.47
  5. Step 5: Solve for x
    x = 34,687,481.47/6,622.74
  6. Step 6: Final answer
    x = 5,237.64

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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.