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Finding the Fourth Proportional to 18,900.81, 26,083.22 and 10,944.99

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Solution

The fourth proportional to 18,900.81, 26,083.22 and 10,944.99 is: 15,104.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.81 : 26,083.22 = 10,944.99 : x
  2. Step 2: Convert to fraction form
    18,900.81/26,083.22 = 10,944.99/x
  3. Step 3: Cross multiply
    18,900.81x = 26,083.22 × 10,944.99
  4. Step 4: Simplify right side
    18,900.81x = 285,480,527.34
  5. Step 5: Solve for x
    x = 285,480,527.34/18,900.81
  6. Step 6: Final answer
    x = 15,104.14

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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.