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Finding the Fourth Proportional to 68,709.41, 94,797.46 and 38,490.65

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Solution

The fourth proportional to 68,709.41, 94,797.46 and 38,490.65 is: 53,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,709.41 : 94,797.46 = 38,490.65 : x
  2. Step 2: Convert to fraction form
    68,709.41/94,797.46 = 38,490.65/x
  3. Step 3: Cross multiply
    68,709.41x = 94,797.46 × 38,490.65
  4. Step 4: Simplify right side
    68,709.41x = 3,648,815,853.75
  5. Step 5: Solve for x
    x = 3,648,815,853.75/68,709.41
  6. Step 6: Final answer
    x = 53,105.04

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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.