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Finding the Fourth Proportional to 8,473.83, 12,702.65 and 3,791.22

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Solution

The fourth proportional to 8,473.83, 12,702.65 and 3,791.22 is: 5,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.83 : 12,702.65 = 3,791.22 : x
  2. Step 2: Convert to fraction form
    8,473.83/12,702.65 = 3,791.22/x
  3. Step 3: Cross multiply
    8,473.83x = 12,702.65 × 3,791.22
  4. Step 4: Simplify right side
    8,473.83x = 48,158,521.78
  5. Step 5: Solve for x
    x = 48,158,521.78/8,473.83
  6. Step 6: Final answer
    x = 5,683.21

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Why These Related Problems?

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