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Finding the Fourth Proportional to 18,175.81, 25,084.86 and 10,217.86

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Solution

The fourth proportional to 18,175.81, 25,084.86 and 10,217.86 is: 14,101.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.81 : 25,084.86 = 10,217.86 : x
  2. Step 2: Convert to fraction form
    18,175.81/25,084.86 = 10,217.86/x
  3. Step 3: Cross multiply
    18,175.81x = 25,084.86 × 10,217.86
  4. Step 4: Simplify right side
    18,175.81x = 256,313,524.89
  5. Step 5: Solve for x
    x = 256,313,524.89/18,175.81
  6. Step 6: Final answer
    x = 14,101.91

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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.