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Finding the Fourth Proportional to 8,680.54, 11,979.11 and 4,701.66

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Solution

The fourth proportional to 8,680.54, 11,979.11 and 4,701.66 is: 6,488.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.54 : 11,979.11 = 4,701.66 : x
  2. Step 2: Convert to fraction form
    8,680.54/11,979.11 = 4,701.66/x
  3. Step 3: Cross multiply
    8,680.54x = 11,979.11 × 4,701.66
  4. Step 4: Simplify right side
    8,680.54x = 56,321,702.32
  5. Step 5: Solve for x
    x = 56,321,702.32/8,680.54
  6. Step 6: Final answer
    x = 6,488.27

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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.