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Finding the Fourth Proportional to 11,648.88, 17,472.72 and 4,252.56

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Solution

The fourth proportional to 11,648.88, 17,472.72 and 4,252.56 is: 6,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,648.88 : 17,472.72 = 4,252.56 : x
  2. Step 2: Convert to fraction form
    11,648.88/17,472.72 = 4,252.56/x
  3. Step 3: Cross multiply
    11,648.88x = 17,472.72 × 4,252.56
  4. Step 4: Simplify right side
    11,648.88x = 74,303,790.16
  5. Step 5: Solve for x
    x = 74,303,790.16/11,648.88
  6. Step 6: Final answer
    x = 6,378.62

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