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Finding the Fourth Proportional to 57,929.88, 79,951.78 and 36,711.08

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Solution

The fourth proportional to 57,929.88, 79,951.78 and 36,711.08 is: 50,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,929.88 : 79,951.78 = 36,711.08 : x
  2. Step 2: Convert to fraction form
    57,929.88/79,951.78 = 36,711.08/x
  3. Step 3: Cross multiply
    57,929.88x = 79,951.78 × 36,711.08
  4. Step 4: Simplify right side
    57,929.88x = 2,935,116,191.72
  5. Step 5: Solve for x
    x = 2,935,116,191.72/57,929.88
  6. Step 6: Final answer
    x = 50,666.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.