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Finding the Fourth Proportional to 68,551.10, 102,833.94 and 21,793.04

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Solution

The fourth proportional to 68,551.10, 102,833.94 and 21,793.04 is: 32,691.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,551.10 : 102,833.94 = 21,793.04 : x
  2. Step 2: Convert to fraction form
    68,551.10/102,833.94 = 21,793.04/x
  3. Step 3: Cross multiply
    68,551.10x = 102,833.94 × 21,793.04
  4. Step 4: Simplify right side
    68,551.10x = 2,241,064,167.78
  5. Step 5: Solve for x
    x = 2,241,064,167.78/68,551.10
  6. Step 6: Final answer
    x = 32,691.88

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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.