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Finding the Fourth Proportional to 2,651.79, 3,658.89 and 1,603.83

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Solution

The fourth proportional to 2,651.79, 3,658.89 and 1,603.83 is: 2,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.79 : 3,658.89 = 1,603.83 : x
  2. Step 2: Convert to fraction form
    2,651.79/3,658.89 = 1,603.83/x
  3. Step 3: Cross multiply
    2,651.79x = 3,658.89 × 1,603.83
  4. Step 4: Simplify right side
    2,651.79x = 5,868,237.55
  5. Step 5: Solve for x
    x = 5,868,237.55/2,651.79
  6. Step 6: Final answer
    x = 2,212.93

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