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Finding the Fourth Proportional to 68,590.35, 102,892.82 and 21,832.29

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Solution

The fourth proportional to 68,590.35, 102,892.82 and 21,832.29 is: 32,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,590.35 : 102,892.82 = 21,832.29 : x
  2. Step 2: Convert to fraction form
    68,590.35/102,892.82 = 21,832.29/x
  3. Step 3: Cross multiply
    68,590.35x = 102,892.82 × 21,832.29
  4. Step 4: Simplify right side
    68,590.35x = 2,246,385,776.00
  5. Step 5: Solve for x
    x = 2,246,385,776.00/68,590.35
  6. Step 6: Final answer
    x = 32,750.76

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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.