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Finding the Fourth Proportional to 9,364.56, 12,923.09 and 5,172.81

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Solution

The fourth proportional to 9,364.56, 12,923.09 and 5,172.81 is: 7,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,364.56 : 12,923.09 = 5,172.81 : x
  2. Step 2: Convert to fraction form
    9,364.56/12,923.09 = 5,172.81/x
  3. Step 3: Cross multiply
    9,364.56x = 12,923.09 × 5,172.81
  4. Step 4: Simplify right side
    9,364.56x = 66,848,663.32
  5. Step 5: Solve for x
    x = 66,848,663.32/9,364.56
  6. Step 6: Final answer
    x = 7,138.47

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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.