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Finding the Fourth Proportional to 2,976.66, 4,107.98 and 1,717.95

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Solution

The fourth proportional to 2,976.66, 4,107.98 and 1,717.95 is: 2,370.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976.66 : 4,107.98 = 1,717.95 : x
  2. Step 2: Convert to fraction form
    2,976.66/4,107.98 = 1,717.95/x
  3. Step 3: Cross multiply
    2,976.66x = 4,107.98 × 1,717.95
  4. Step 4: Simplify right side
    2,976.66x = 7,057,304.24
  5. Step 5: Solve for x
    x = 7,057,304.24/2,976.66
  6. Step 6: Final answer
    x = 2,370.88

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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.