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Finding the Fourth Proportional to 16,912.76, 25,375.16 and 7,551.93

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Solution

The fourth proportional to 16,912.76, 25,375.16 and 7,551.93 is: 11,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.76 : 25,375.16 = 7,551.93 : x
  2. Step 2: Convert to fraction form
    16,912.76/25,375.16 = 7,551.93/x
  3. Step 3: Cross multiply
    16,912.76x = 25,375.16 × 7,551.93
  4. Step 4: Simplify right side
    16,912.76x = 191,631,394.30
  5. Step 5: Solve for x
    x = 191,631,394.30/16,912.76
  6. Step 6: Final answer
    x = 11,330.58

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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.