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Finding the Fourth Proportional to 18,348.80, 27,517.80 and 5,202.32

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Solution

The fourth proportional to 18,348.80, 27,517.80 and 5,202.32 is: 7,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.80 : 27,517.80 = 5,202.32 : x
  2. Step 2: Convert to fraction form
    18,348.80/27,517.80 = 5,202.32/x
  3. Step 3: Cross multiply
    18,348.80x = 27,517.80 × 5,202.32
  4. Step 4: Simplify right side
    18,348.80x = 143,156,401.30
  5. Step 5: Solve for x
    x = 143,156,401.30/18,348.80
  6. Step 6: Final answer
    x = 7,801.95

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1.5x scale

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.