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Finding the Fourth Proportional to 34,268.80, 51,408.60 and 10,897.60

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Solution

The fourth proportional to 34,268.80, 51,408.60 and 10,897.60 is: 16,348.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,268.80 : 51,408.60 = 10,897.60 : x
  2. Step 2: Convert to fraction form
    34,268.80/51,408.60 = 10,897.60/x
  3. Step 3: Cross multiply
    34,268.80x = 51,408.60 × 10,897.60
  4. Step 4: Simplify right side
    34,268.80x = 560,230,359.36
  5. Step 5: Solve for x
    x = 560,230,359.36/34,268.80
  6. Step 6: Final answer
    x = 16,348.12

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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.