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Finding the Fourth Proportional to 11,296.98, 15,589.94 and 6,261.31

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Solution

The fourth proportional to 11,296.98, 15,589.94 and 6,261.31 is: 8,640.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.98 : 15,589.94 = 6,261.31 : x
  2. Step 2: Convert to fraction form
    11,296.98/15,589.94 = 6,261.31/x
  3. Step 3: Cross multiply
    11,296.98x = 15,589.94 × 6,261.31
  4. Step 4: Simplify right side
    11,296.98x = 97,613,444.39
  5. Step 5: Solve for x
    x = 97,613,444.39/11,296.98
  6. Step 6: Final answer
    x = 8,640.67

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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.