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Finding the Fourth Proportional to 7,888.88, 11,835.16 and 2,694.76

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Solution

The fourth proportional to 7,888.88, 11,835.16 and 2,694.76 is: 4,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.88 : 11,835.16 = 2,694.76 : x
  2. Step 2: Convert to fraction form
    7,888.88/11,835.16 = 2,694.76/x
  3. Step 3: Cross multiply
    7,888.88x = 11,835.16 × 2,694.76
  4. Step 4: Simplify right side
    7,888.88x = 31,892,915.76
  5. Step 5: Solve for x
    x = 31,892,915.76/7,888.88
  6. Step 6: Final answer
    x = 4,042.77

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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.