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Finding the Fourth Proportional to 34,433.60, 51,664.80 and 11,067.20

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Solution

The fourth proportional to 34,433.60, 51,664.80 and 11,067.20 is: 16,605.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,433.60 : 51,664.80 = 11,067.20 : x
  2. Step 2: Convert to fraction form
    34,433.60/51,664.80 = 11,067.20/x
  3. Step 3: Cross multiply
    34,433.60x = 51,664.80 × 11,067.20
  4. Step 4: Simplify right side
    34,433.60x = 571,784,674.56
  5. Step 5: Solve for x
    x = 571,784,674.56/34,433.60
  6. Step 6: Final answer
    x = 16,605.43

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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.