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Finding the Fourth Proportional to 18,063.84, 24,930.81 and 10,405.70

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Solution

The fourth proportional to 18,063.84, 24,930.81 and 10,405.70 is: 14,361.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,063.84 : 24,930.81 = 10,405.70 : x
  2. Step 2: Convert to fraction form
    18,063.84/24,930.81 = 10,405.70/x
  3. Step 3: Cross multiply
    18,063.84x = 24,930.81 × 10,405.70
  4. Step 4: Simplify right side
    18,063.84x = 259,422,404.96
  5. Step 5: Solve for x
    x = 259,422,404.96/18,063.84
  6. Step 6: Final answer
    x = 14,361.42

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1.5x scale

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.