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Finding the Fourth Proportional to 18,480.29, 25,500.83 and 10,926.90

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Solution

The fourth proportional to 18,480.29, 25,500.83 and 10,926.90 is: 15,077.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.29 : 25,500.83 = 10,926.90 : x
  2. Step 2: Convert to fraction form
    18,480.29/25,500.83 = 10,926.90/x
  3. Step 3: Cross multiply
    18,480.29x = 25,500.83 × 10,926.90
  4. Step 4: Simplify right side
    18,480.29x = 278,644,964.69
  5. Step 5: Solve for x
    x = 278,644,964.69/18,480.29
  6. Step 6: Final answer
    x = 15,077.96

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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.