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Finding the Fourth Proportional to 41,625.60, 62,443.80 and 20,576.40

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Solution

The fourth proportional to 41,625.60, 62,443.80 and 20,576.40 is: 30,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,625.60 : 62,443.80 = 20,576.40 : x
  2. Step 2: Convert to fraction form
    41,625.60/62,443.80 = 20,576.40/x
  3. Step 3: Cross multiply
    41,625.60x = 62,443.80 × 20,576.40
  4. Step 4: Simplify right side
    41,625.60x = 1,284,868,606.32
  5. Step 5: Solve for x
    x = 1,284,868,606.32/41,625.60
  6. Step 6: Final answer
    x = 30,867.27

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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.