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Finding the Fourth Proportional to 21,676.98, 32,512.15 and 6,883.98

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Solution

The fourth proportional to 21,676.98, 32,512.15 and 6,883.98 is: 10,324.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,676.98 : 32,512.15 = 6,883.98 : x
  2. Step 2: Convert to fraction form
    21,676.98/32,512.15 = 6,883.98/x
  3. Step 3: Cross multiply
    21,676.98x = 32,512.15 × 6,883.98
  4. Step 4: Simplify right side
    21,676.98x = 223,812,990.36
  5. Step 5: Solve for x
    x = 223,812,990.36/21,676.98
  6. Step 6: Final answer
    x = 10,324.92

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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.