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Finding the Fourth Proportional to 35,604.90, 53,408.43 and 12,231

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Solution

The fourth proportional to 35,604.90, 53,408.43 and 12,231 is: 18,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,604.90 : 53,408.43 = 12,231 : x
  2. Step 2: Convert to fraction form
    35,604.90/53,408.43 = 12,231/x
  3. Step 3: Cross multiply
    35,604.90x = 53,408.43 × 12,231
  4. Step 4: Simplify right side
    35,604.90x = 653,238,507.33
  5. Step 5: Solve for x
    x = 653,238,507.33/35,604.90
  6. Step 6: Final answer
    x = 18,346.87

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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.