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Finding the Fourth Proportional to 18,496.10, 27,744.15 and 15,569.30

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Solution

The fourth proportional to 18,496.10, 27,744.15 and 15,569.30 is: 23,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.10 : 27,744.15 = 15,569.30 : x
  2. Step 2: Convert to fraction form
    18,496.10/27,744.15 = 15,569.30/x
  3. Step 3: Cross multiply
    18,496.10x = 27,744.15 × 15,569.30
  4. Step 4: Simplify right side
    18,496.10x = 431,956,994.60
  5. Step 5: Solve for x
    x = 431,956,994.60/18,496.10
  6. Step 6: Final answer
    x = 23,353.95

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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.