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Finding the Fourth Proportional to 3,701.49, 5,108.54 and 2,129.58

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Solution

The fourth proportional to 3,701.49, 5,108.54 and 2,129.58 is: 2,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,701.49 : 5,108.54 = 2,129.58 : x
  2. Step 2: Convert to fraction form
    3,701.49/5,108.54 = 2,129.58/x
  3. Step 3: Cross multiply
    3,701.49x = 5,108.54 × 2,129.58
  4. Step 4: Simplify right side
    3,701.49x = 10,879,033.97
  5. Step 5: Solve for x
    x = 10,879,033.97/3,701.49
  6. Step 6: Final answer
    x = 2,939.10

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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.