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Finding the Fourth Proportional to 16,629.54, 22,951.74 and 9,915.60

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Solution

The fourth proportional to 16,629.54, 22,951.74 and 9,915.60 is: 13,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,629.54 : 22,951.74 = 9,915.60 : x
  2. Step 2: Convert to fraction form
    16,629.54/22,951.74 = 9,915.60/x
  3. Step 3: Cross multiply
    16,629.54x = 22,951.74 × 9,915.60
  4. Step 4: Simplify right side
    16,629.54x = 227,580,273.14
  5. Step 5: Solve for x
    x = 227,580,273.14/16,629.54
  6. Step 6: Final answer
    x = 13,685.30

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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.