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Finding the Fourth Proportional to 18,556.64, 27,834.72 and 4,516.69

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Solution

The fourth proportional to 18,556.64, 27,834.72 and 4,516.69 is: 6,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556.64 : 27,834.72 = 4,516.69 : x
  2. Step 2: Convert to fraction form
    18,556.64/27,834.72 = 4,516.69/x
  3. Step 3: Cross multiply
    18,556.64x = 27,834.72 × 4,516.69
  4. Step 4: Simplify right side
    18,556.64x = 125,720,801.48
  5. Step 5: Solve for x
    x = 125,720,801.48/18,556.64
  6. Step 6: Final answer
    x = 6,774.98

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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.