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Finding the Fourth Proportional to 5,658.78, 7,808.64 and 3,301.14

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Solution

The fourth proportional to 5,658.78, 7,808.64 and 3,301.14 is: 4,555.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,658.78 : 7,808.64 = 3,301.14 : x
  2. Step 2: Convert to fraction form
    5,658.78/7,808.64 = 3,301.14/x
  3. Step 3: Cross multiply
    5,658.78x = 7,808.64 × 3,301.14
  4. Step 4: Simplify right side
    5,658.78x = 25,777,413.85
  5. Step 5: Solve for x
    x = 25,777,413.85/5,658.78
  6. Step 6: Final answer
    x = 4,555.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.