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Finding the Fourth Proportional to 8,462.65, 12,696.17 and 4,955.62

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Solution

The fourth proportional to 8,462.65, 12,696.17 and 4,955.62 is: 7,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,462.65 : 12,696.17 = 4,955.62 : x
  2. Step 2: Convert to fraction form
    8,462.65/12,696.17 = 4,955.62/x
  3. Step 3: Cross multiply
    8,462.65x = 12,696.17 × 4,955.62
  4. Step 4: Simplify right side
    8,462.65x = 62,917,369.20
  5. Step 5: Solve for x
    x = 62,917,369.20/8,462.65
  6. Step 6: Final answer
    x = 7,434.71

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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.