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Finding the Fourth Proportional to 68,690.40, 94,796.31 and 38,473.95

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Solution

The fourth proportional to 68,690.40, 94,796.31 and 38,473.95 is: 53,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,690.40 : 94,796.31 = 38,473.95 : x
  2. Step 2: Convert to fraction form
    68,690.40/94,796.31 = 38,473.95/x
  3. Step 3: Cross multiply
    68,690.40x = 94,796.31 × 38,473.95
  4. Step 4: Simplify right side
    68,690.40x = 3,647,188,491.12
  5. Step 5: Solve for x
    x = 3,647,188,491.12/68,690.40
  6. Step 6: Final answer
    x = 53,096.04

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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.