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Finding the Fourth Proportional to 18,348.16, 27,522.19 and 5,200.65

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Solution

The fourth proportional to 18,348.16, 27,522.19 and 5,200.65 is: 7,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.16 : 27,522.19 = 5,200.65 : x
  2. Step 2: Convert to fraction form
    18,348.16/27,522.19 = 5,200.65/x
  3. Step 3: Cross multiply
    18,348.16x = 27,522.19 × 5,200.65
  4. Step 4: Simplify right side
    18,348.16x = 143,133,208.62
  5. Step 5: Solve for x
    x = 143,133,208.62/18,348.16
  6. Step 6: Final answer
    x = 7,800.96

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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.