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Finding the Fourth Proportional to 41,858.43, 62,788.16 and 12,276.87

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Solution

The fourth proportional to 41,858.43, 62,788.16 and 12,276.87 is: 18,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,858.43 : 62,788.16 = 12,276.87 : x
  2. Step 2: Convert to fraction form
    41,858.43/62,788.16 = 12,276.87/x
  3. Step 3: Cross multiply
    41,858.43x = 62,788.16 × 12,276.87
  4. Step 4: Simplify right side
    41,858.43x = 770,842,016.47
  5. Step 5: Solve for x
    x = 770,842,016.47/41,858.43
  6. Step 6: Final answer
    x = 18,415.45

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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.