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Finding the Fourth Proportional to 41,129.80, 61,694.70 and 25,347.40

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Solution

The fourth proportional to 41,129.80, 61,694.70 and 25,347.40 is: 38,021.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.80 : 61,694.70 = 25,347.40 : x
  2. Step 2: Convert to fraction form
    41,129.80/61,694.70 = 25,347.40/x
  3. Step 3: Cross multiply
    41,129.80x = 61,694.70 × 25,347.40
  4. Step 4: Simplify right side
    41,129.80x = 1,563,800,238.78
  5. Step 5: Solve for x
    x = 1,563,800,238.78/41,129.80
  6. Step 6: Final answer
    x = 38,021.10

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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.