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Finding the Fourth Proportional to 6,912.58, 10,368.93 and 2,531.29

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Solution

The fourth proportional to 6,912.58, 10,368.93 and 2,531.29 is: 3,796.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.58 : 10,368.93 = 2,531.29 : x
  2. Step 2: Convert to fraction form
    6,912.58/10,368.93 = 2,531.29/x
  3. Step 3: Cross multiply
    6,912.58x = 10,368.93 × 2,531.29
  4. Step 4: Simplify right side
    6,912.58x = 26,246,768.82
  5. Step 5: Solve for x
    x = 26,246,768.82/6,912.58
  6. Step 6: Final answer
    x = 3,796.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.