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Finding the Fourth Proportional to 6,603.34, 9,910.48 and 3,317.38

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Solution

The fourth proportional to 6,603.34, 9,910.48 and 3,317.38 is: 4,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.34 : 9,910.48 = 3,317.38 : x
  2. Step 2: Convert to fraction form
    6,603.34/9,910.48 = 3,317.38/x
  3. Step 3: Cross multiply
    6,603.34x = 9,910.48 × 3,317.38
  4. Step 4: Simplify right side
    6,603.34x = 32,876,828.14
  5. Step 5: Solve for x
    x = 32,876,828.14/6,603.34
  6. Step 6: Final answer
    x = 4,978.82

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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.