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Finding the Fourth Proportional to 40,604.21, 60,916.80 and 12,523.63

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Solution

The fourth proportional to 40,604.21, 60,916.80 and 12,523.63 is: 18,788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,604.21 : 60,916.80 = 12,523.63 : x
  2. Step 2: Convert to fraction form
    40,604.21/60,916.80 = 12,523.63/x
  3. Step 3: Cross multiply
    40,604.21x = 60,916.80 × 12,523.63
  4. Step 4: Simplify right side
    40,604.21x = 762,899,463.98
  5. Step 5: Solve for x
    x = 762,899,463.98/40,604.21
  6. Step 6: Final answer
    x = 18,788.68

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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.