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Finding the Fourth Proportional to 18,481.29, 25,502.20 and 10,927.90

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Solution

The fourth proportional to 18,481.29, 25,502.20 and 10,927.90 is: 15,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.29 : 25,502.20 = 10,927.90 : x
  2. Step 2: Convert to fraction form
    18,481.29/25,502.20 = 10,927.90/x
  3. Step 3: Cross multiply
    18,481.29x = 25,502.20 × 10,927.90
  4. Step 4: Simplify right side
    18,481.29x = 278,685,491.38
  5. Step 5: Solve for x
    x = 278,685,491.38/18,481.29
  6. Step 6: Final answer
    x = 15,079.33

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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.