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Finding the Fourth Proportional to 18,792.17, 28,190.16 and 6,949.11

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Solution

The fourth proportional to 18,792.17, 28,190.16 and 6,949.11 is: 10,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792.17 : 28,190.16 = 6,949.11 : x
  2. Step 2: Convert to fraction form
    18,792.17/28,190.16 = 6,949.11/x
  3. Step 3: Cross multiply
    18,792.17x = 28,190.16 × 6,949.11
  4. Step 4: Simplify right side
    18,792.17x = 195,896,469.90
  5. Step 5: Solve for x
    x = 195,896,469.90/18,792.17
  6. Step 6: Final answer
    x = 10,424.37

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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.