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Finding the Fourth Proportional to 18,234.81, 25,162.11 and 10,276.97

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Solution

The fourth proportional to 18,234.81, 25,162.11 and 10,276.97 is: 14,181.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.81 : 25,162.11 = 10,276.97 : x
  2. Step 2: Convert to fraction form
    18,234.81/25,162.11 = 10,276.97/x
  3. Step 3: Cross multiply
    18,234.81x = 25,162.11 × 10,276.97
  4. Step 4: Simplify right side
    18,234.81x = 258,590,123.80
  5. Step 5: Solve for x
    x = 258,590,123.80/18,234.81
  6. Step 6: Final answer
    x = 14,181.13

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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.