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Finding the Fourth Proportional to 41,662.80, 62,421.29 and 34,687.64

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Solution

The fourth proportional to 41,662.80, 62,421.29 and 34,687.64 is: 51,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,662.80 : 62,421.29 = 34,687.64 : x
  2. Step 2: Convert to fraction form
    41,662.80/62,421.29 = 34,687.64/x
  3. Step 3: Cross multiply
    41,662.80x = 62,421.29 × 34,687.64
  4. Step 4: Simplify right side
    41,662.80x = 2,165,247,010.47
  5. Step 5: Solve for x
    x = 2,165,247,010.47/41,662.80
  6. Step 6: Final answer
    x = 51,970.75

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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.