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Finding the Fourth Proportional to 52,821.99, 79,143.89 and 26,132.38

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Solution

The fourth proportional to 52,821.99, 79,143.89 and 26,132.38 is: 39,154.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,821.99 : 79,143.89 = 26,132.38 : x
  2. Step 2: Convert to fraction form
    52,821.99/79,143.89 = 26,132.38/x
  3. Step 3: Cross multiply
    52,821.99x = 79,143.89 × 26,132.38
  4. Step 4: Simplify right side
    52,821.99x = 2,068,217,879.64
  5. Step 5: Solve for x
    x = 2,068,217,879.64/52,821.99
  6. Step 6: Final answer
    x = 39,154.49

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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.