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Finding the Fourth Proportional to 18,052.76, 27,079.69 and 4,905.41

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Solution

The fourth proportional to 18,052.76, 27,079.69 and 4,905.41 is: 7,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,052.76 : 27,079.69 = 4,905.41 : x
  2. Step 2: Convert to fraction form
    18,052.76/27,079.69 = 4,905.41/x
  3. Step 3: Cross multiply
    18,052.76x = 27,079.69 × 4,905.41
  4. Step 4: Simplify right side
    18,052.76x = 132,836,834.46
  5. Step 5: Solve for x
    x = 132,836,834.46/18,052.76
  6. Step 6: Final answer
    x = 7,358.26

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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.