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Finding the Fourth Proportional to 18,693.69, 25,797.11 and 10,738.41

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Solution

The fourth proportional to 18,693.69, 25,797.11 and 10,738.41 is: 14,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.69 : 25,797.11 = 10,738.41 : x
  2. Step 2: Convert to fraction form
    18,693.69/25,797.11 = 10,738.41/x
  3. Step 3: Cross multiply
    18,693.69x = 25,797.11 × 10,738.41
  4. Step 4: Simplify right side
    18,693.69x = 277,019,890.30
  5. Step 5: Solve for x
    x = 277,019,890.30/18,693.69
  6. Step 6: Final answer
    x = 14,818.90

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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.