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Finding the Fourth Proportional to 52,676.72, 79,015.16 and 21,511.97

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Solution

The fourth proportional to 52,676.72, 79,015.16 and 21,511.97 is: 32,267.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,676.72 : 79,015.16 = 21,511.97 : x
  2. Step 2: Convert to fraction form
    52,676.72/79,015.16 = 21,511.97/x
  3. Step 3: Cross multiply
    52,676.72x = 79,015.16 × 21,511.97
  4. Step 4: Simplify right side
    52,676.72x = 1,699,771,585.47
  5. Step 5: Solve for x
    x = 1,699,771,585.47/52,676.72
  6. Step 6: Final answer
    x = 32,267.99

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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.