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Finding the Fourth Proportional to 7,203.09, 10,787.76 and 3,493.29

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Solution

The fourth proportional to 7,203.09, 10,787.76 and 3,493.29 is: 5,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203.09 : 10,787.76 = 3,493.29 : x
  2. Step 2: Convert to fraction form
    7,203.09/10,787.76 = 3,493.29/x
  3. Step 3: Cross multiply
    7,203.09x = 10,787.76 × 3,493.29
  4. Step 4: Simplify right side
    7,203.09x = 37,684,774.13
  5. Step 5: Solve for x
    x = 37,684,774.13/7,203.09
  6. Step 6: Final answer
    x = 5,231.75

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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.