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Finding the Fourth Proportional to 68,696.12, 94,798.04 and 38,479.97

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Solution

The fourth proportional to 68,696.12, 94,798.04 and 38,479.97 is: 53,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,696.12 : 94,798.04 = 38,479.97 : x
  2. Step 2: Convert to fraction form
    68,696.12/94,798.04 = 38,479.97/x
  3. Step 3: Cross multiply
    68,696.12x = 94,798.04 × 38,479.97
  4. Step 4: Simplify right side
    68,696.12x = 3,647,825,068.87
  5. Step 5: Solve for x
    x = 3,647,825,068.87/68,696.12
  6. Step 6: Final answer
    x = 53,100.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.