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Finding the Fourth Proportional to 9,912.26, 13,678.93 and 5,436.30

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Solution

The fourth proportional to 9,912.26, 13,678.93 and 5,436.30 is: 7,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.26 : 13,678.93 = 5,436.30 : x
  2. Step 2: Convert to fraction form
    9,912.26/13,678.93 = 5,436.30/x
  3. Step 3: Cross multiply
    9,912.26x = 13,678.93 × 5,436.30
  4. Step 4: Simplify right side
    9,912.26x = 74,362,825.25
  5. Step 5: Solve for x
    x = 74,362,825.25/9,912.26
  6. Step 6: Final answer
    x = 7,502.10

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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.