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Finding the Fourth Proportional to 52,684.67, 79,027.09 and 21,519.92

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Solution

The fourth proportional to 52,684.67, 79,027.09 and 21,519.92 is: 32,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,684.67 : 79,027.09 = 21,519.92 : x
  2. Step 2: Convert to fraction form
    52,684.67/79,027.09 = 21,519.92/x
  3. Step 3: Cross multiply
    52,684.67x = 79,027.09 × 21,519.92
  4. Step 4: Simplify right side
    52,684.67x = 1,700,656,547.03
  5. Step 5: Solve for x
    x = 1,700,656,547.03/52,684.67
  6. Step 6: Final answer
    x = 32,279.91

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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.