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Finding the Fourth Proportional to 13,418.11, 20,127.17 and 5,096.17

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Solution

The fourth proportional to 13,418.11, 20,127.17 and 5,096.17 is: 7,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.11 : 20,127.17 = 5,096.17 : x
  2. Step 2: Convert to fraction form
    13,418.11/20,127.17 = 5,096.17/x
  3. Step 3: Cross multiply
    13,418.11x = 20,127.17 × 5,096.17
  4. Step 4: Simplify right side
    13,418.11x = 102,571,479.94
  5. Step 5: Solve for x
    x = 102,571,479.94/13,418.11
  6. Step 6: Final answer
    x = 7,644.26

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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.