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Finding the Fourth Proportional to 18,528.76, 27,785.76 and 10,743.04

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Solution

The fourth proportional to 18,528.76, 27,785.76 and 10,743.04 is: 16,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,528.76 : 27,785.76 = 10,743.04 : x
  2. Step 2: Convert to fraction form
    18,528.76/27,785.76 = 10,743.04/x
  3. Step 3: Cross multiply
    18,528.76x = 27,785.76 × 10,743.04
  4. Step 4: Simplify right side
    18,528.76x = 298,503,531.11
  5. Step 5: Solve for x
    x = 298,503,531.11/18,528.76
  6. Step 6: Final answer
    x = 16,110.28

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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.