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Finding the Fourth Proportional to 8,443.40, 12,659.70 and 4,067.24

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Solution

The fourth proportional to 8,443.40, 12,659.70 and 4,067.24 is: 6,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.40 : 12,659.70 = 4,067.24 : x
  2. Step 2: Convert to fraction form
    8,443.40/12,659.70 = 4,067.24/x
  3. Step 3: Cross multiply
    8,443.40x = 12,659.70 × 4,067.24
  4. Step 4: Simplify right side
    8,443.40x = 51,490,038.23
  5. Step 5: Solve for x
    x = 51,490,038.23/8,443.40
  6. Step 6: Final answer
    x = 6,098.26

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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.