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Finding the Fourth Proportional to 9,371.88, 12,933.02 and 5,180.04

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Solution

The fourth proportional to 9,371.88, 12,933.02 and 5,180.04 is: 7,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.88 : 12,933.02 = 5,180.04 : x
  2. Step 2: Convert to fraction form
    9,371.88/12,933.02 = 5,180.04/x
  3. Step 3: Cross multiply
    9,371.88x = 12,933.02 × 5,180.04
  4. Step 4: Simplify right side
    9,371.88x = 66,993,560.92
  5. Step 5: Solve for x
    x = 66,993,560.92/9,371.88
  6. Step 6: Final answer
    x = 7,148.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.