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Finding the Fourth Proportional to 13,273.40, 18,313.98 and 8,552

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Solution

The fourth proportional to 13,273.40, 18,313.98 and 8,552 is: 11,799.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.40 : 18,313.98 = 8,552 : x
  2. Step 2: Convert to fraction form
    13,273.40/18,313.98 = 8,552/x
  3. Step 3: Cross multiply
    13,273.40x = 18,313.98 × 8,552
  4. Step 4: Simplify right side
    13,273.40x = 156,621,156.96
  5. Step 5: Solve for x
    x = 156,621,156.96/13,273.40
  6. Step 6: Final answer
    x = 11,799.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.