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Finding the Fourth Proportional to 3,379.63, 4,661.54 and 3,100.79

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Solution

The fourth proportional to 3,379.63, 4,661.54 and 3,100.79 is: 4,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.63 : 4,661.54 = 3,100.79 : x
  2. Step 2: Convert to fraction form
    3,379.63/4,661.54 = 3,100.79/x
  3. Step 3: Cross multiply
    3,379.63x = 4,661.54 × 3,100.79
  4. Step 4: Simplify right side
    3,379.63x = 14,454,438.17
  5. Step 5: Solve for x
    x = 14,454,438.17/3,379.63
  6. Step 6: Final answer
    x = 4,276.93

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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.