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Finding the Fourth Proportional to 12,402.59, 18,604.01 and 3,637.67

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Solution

The fourth proportional to 12,402.59, 18,604.01 and 3,637.67 is: 5,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.59 : 18,604.01 = 3,637.67 : x
  2. Step 2: Convert to fraction form
    12,402.59/18,604.01 = 3,637.67/x
  3. Step 3: Cross multiply
    12,402.59x = 18,604.01 × 3,637.67
  4. Step 4: Simplify right side
    12,402.59x = 67,675,137.85
  5. Step 5: Solve for x
    x = 67,675,137.85/12,402.59
  6. Step 6: Final answer
    x = 5,456.53

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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.