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Finding the Fourth Proportional to 52,805.82, 79,208.76 and 21,662.94

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Solution

The fourth proportional to 52,805.82, 79,208.76 and 21,662.94 is: 32,494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,805.82 : 79,208.76 = 21,662.94 : x
  2. Step 2: Convert to fraction form
    52,805.82/79,208.76 = 21,662.94/x
  3. Step 3: Cross multiply
    52,805.82x = 79,208.76 × 21,662.94
  4. Step 4: Simplify right side
    52,805.82x = 1,715,894,615.35
  5. Step 5: Solve for x
    x = 1,715,894,615.35/52,805.82
  6. Step 6: Final answer
    x = 32,494.42

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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.