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Finding the Fourth Proportional to 57,381.78, 79,201.89 and 32,239.38

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Solution

The fourth proportional to 57,381.78, 79,201.89 and 32,239.38 is: 44,498.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,381.78 : 79,201.89 = 32,239.38 : x
  2. Step 2: Convert to fraction form
    57,381.78/79,201.89 = 32,239.38/x
  3. Step 3: Cross multiply
    57,381.78x = 79,201.89 × 32,239.38
  4. Step 4: Simplify right side
    57,381.78x = 2,553,419,828.43
  5. Step 5: Solve for x
    x = 2,553,419,828.43/57,381.78
  6. Step 6: Final answer
    x = 44,498.79

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1.5x scale

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.