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Finding the Fourth Proportional to 8,556.60, 12,836.60 and 4,174.14

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Solution

The fourth proportional to 8,556.60, 12,836.60 and 4,174.14 is: 6,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.60 : 12,836.60 = 4,174.14 : x
  2. Step 2: Convert to fraction form
    8,556.60/12,836.60 = 4,174.14/x
  3. Step 3: Cross multiply
    8,556.60x = 12,836.60 × 4,174.14
  4. Step 4: Simplify right side
    8,556.60x = 53,581,765.52
  5. Step 5: Solve for x
    x = 53,581,765.52/8,556.60
  6. Step 6: Final answer
    x = 6,262.04

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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.