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Finding the Fourth Proportional to 18,951.50, 26,153.61 and 10,568.54

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Solution

The fourth proportional to 18,951.50, 26,153.61 and 10,568.54 is: 14,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.50 : 26,153.61 = 10,568.54 : x
  2. Step 2: Convert to fraction form
    18,951.50/26,153.61 = 10,568.54/x
  3. Step 3: Cross multiply
    18,951.50x = 26,153.61 × 10,568.54
  4. Step 4: Simplify right side
    18,951.50x = 276,405,473.43
  5. Step 5: Solve for x
    x = 276,405,473.43/18,951.50
  6. Step 6: Final answer
    x = 14,584.89

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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.