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Finding the Fourth Proportional to 38,401, 57,601.50 and 9,217

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Solution

The fourth proportional to 38,401, 57,601.50 and 9,217 is: 13,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401 : 57,601.50 = 9,217 : x
  2. Step 2: Convert to fraction form
    38,401/57,601.50 = 9,217/x
  3. Step 3: Cross multiply
    38,401x = 57,601.50 × 9,217
  4. Step 4: Simplify right side
    38,401x = 530,913,025.50
  5. Step 5: Solve for x
    x = 530,913,025.50/38,401
  6. Step 6: Final answer
    x = 13,825.50

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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.