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Finding the Fourth Proportional to 18,544.50, 25,591.44 and 10,161

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Solution

The fourth proportional to 18,544.50, 25,591.44 and 10,161 is: 14,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,544.50 : 25,591.44 = 10,161 : x
  2. Step 2: Convert to fraction form
    18,544.50/25,591.44 = 10,161/x
  3. Step 3: Cross multiply
    18,544.50x = 25,591.44 × 10,161
  4. Step 4: Simplify right side
    18,544.50x = 260,034,621.84
  5. Step 5: Solve for x
    x = 260,034,621.84/18,544.50
  6. Step 6: Final answer
    x = 14,022.20

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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.