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Finding the Fourth Proportional to 18,163.81, 25,065.46 and 10,097.43

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Solution

The fourth proportional to 18,163.81, 25,065.46 and 10,097.43 is: 13,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.81 : 25,065.46 = 10,097.43 : x
  2. Step 2: Convert to fraction form
    18,163.81/25,065.46 = 10,097.43/x
  3. Step 3: Cross multiply
    18,163.81x = 25,065.46 × 10,097.43
  4. Step 4: Simplify right side
    18,163.81x = 253,096,727.77
  5. Step 5: Solve for x
    x = 253,096,727.77/18,163.81
  6. Step 6: Final answer
    x = 13,934.12

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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.