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Finding the Fourth Proportional to 4,980.44, 7,472 and 4,436.36

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Solution

The fourth proportional to 4,980.44, 7,472 and 4,436.36 is: 6,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.44 : 7,472 = 4,436.36 : x
  2. Step 2: Convert to fraction form
    4,980.44/7,472 = 4,436.36/x
  3. Step 3: Cross multiply
    4,980.44x = 7,472 × 4,436.36
  4. Step 4: Simplify right side
    4,980.44x = 33,148,481.92
  5. Step 5: Solve for x
    x = 33,148,481.92/4,980.44
  6. Step 6: Final answer
    x = 6,655.73

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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.