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Finding the Fourth Proportional to 18,836, 25,994.22 and 10,453.04

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Solution

The fourth proportional to 18,836, 25,994.22 and 10,453.04 is: 14,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,836 : 25,994.22 = 10,453.04 : x
  2. Step 2: Convert to fraction form
    18,836/25,994.22 = 10,453.04/x
  3. Step 3: Cross multiply
    18,836x = 25,994.22 × 10,453.04
  4. Step 4: Simplify right side
    18,836x = 271,718,621.43
  5. Step 5: Solve for x
    x = 271,718,621.43/18,836
  6. Step 6: Final answer
    x = 14,425.49

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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.