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Finding the Fourth Proportional to 8,706.86, 13,062.16 and 2,702.81

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Solution

The fourth proportional to 8,706.86, 13,062.16 and 2,702.81 is: 4,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.86 : 13,062.16 = 2,702.81 : x
  2. Step 2: Convert to fraction form
    8,706.86/13,062.16 = 2,702.81/x
  3. Step 3: Cross multiply
    8,706.86x = 13,062.16 × 2,702.81
  4. Step 4: Simplify right side
    8,706.86x = 35,304,464.60
  5. Step 5: Solve for x
    x = 35,304,464.60/8,706.86
  6. Step 6: Final answer
    x = 4,054.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.