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Finding the Fourth Proportional to 18,053.76, 27,081.19 and 4,906.41

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Solution

The fourth proportional to 18,053.76, 27,081.19 and 4,906.41 is: 7,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,053.76 : 27,081.19 = 4,906.41 : x
  2. Step 2: Convert to fraction form
    18,053.76/27,081.19 = 4,906.41/x
  3. Step 3: Cross multiply
    18,053.76x = 27,081.19 × 4,906.41
  4. Step 4: Simplify right side
    18,053.76x = 132,871,421.43
  5. Step 5: Solve for x
    x = 132,871,421.43/18,053.76
  6. Step 6: Final answer
    x = 7,359.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.