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Finding the Fourth Proportional to 7,894.65, 11,841.51 and 2,963.88

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Solution

The fourth proportional to 7,894.65, 11,841.51 and 2,963.88 is: 4,445.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894.65 : 11,841.51 = 2,963.88 : x
  2. Step 2: Convert to fraction form
    7,894.65/11,841.51 = 2,963.88/x
  3. Step 3: Cross multiply
    7,894.65x = 11,841.51 × 2,963.88
  4. Step 4: Simplify right side
    7,894.65x = 35,096,814.66
  5. Step 5: Solve for x
    x = 35,096,814.66/7,894.65
  6. Step 6: Final answer
    x = 4,445.65

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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.