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Finding the Fourth Proportional to 9,222.70, 12,725.68 and 5,243.58

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Solution

The fourth proportional to 9,222.70, 12,725.68 and 5,243.58 is: 7,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,222.70 : 12,725.68 = 5,243.58 : x
  2. Step 2: Convert to fraction form
    9,222.70/12,725.68 = 5,243.58/x
  3. Step 3: Cross multiply
    9,222.70x = 12,725.68 × 5,243.58
  4. Step 4: Simplify right side
    9,222.70x = 66,728,121.13
  5. Step 5: Solve for x
    x = 66,728,121.13/9,222.70
  6. Step 6: Final answer
    x = 7,235.20

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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.