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Finding the Fourth Proportional to 12,218.26, 16,862.54 and 6,913.02

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Solution

The fourth proportional to 12,218.26, 16,862.54 and 6,913.02 is: 9,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.26 : 16,862.54 = 6,913.02 : x
  2. Step 2: Convert to fraction form
    12,218.26/16,862.54 = 6,913.02/x
  3. Step 3: Cross multiply
    12,218.26x = 16,862.54 × 6,913.02
  4. Step 4: Simplify right side
    12,218.26x = 116,571,076.27
  5. Step 5: Solve for x
    x = 116,571,076.27/12,218.26
  6. Step 6: Final answer
    x = 9,540.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.