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Finding the Fourth Proportional to 18,793.70, 25,933.68 and 10,836.54

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Solution

The fourth proportional to 18,793.70, 25,933.68 and 10,836.54 is: 14,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.70 : 25,933.68 = 10,836.54 : x
  2. Step 2: Convert to fraction form
    18,793.70/25,933.68 = 10,836.54/x
  3. Step 3: Cross multiply
    18,793.70x = 25,933.68 × 10,836.54
  4. Step 4: Simplify right side
    18,793.70x = 281,031,360.67
  5. Step 5: Solve for x
    x = 281,031,360.67/18,793.70
  6. Step 6: Final answer
    x = 14,953.49

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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.