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Finding the Fourth Proportional to 18,562.35, 27,857.37 and 7,469.14

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Solution

The fourth proportional to 18,562.35, 27,857.37 and 7,469.14 is: 11,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.35 : 27,857.37 = 7,469.14 : x
  2. Step 2: Convert to fraction form
    18,562.35/27,857.37 = 7,469.14/x
  3. Step 3: Cross multiply
    18,562.35x = 27,857.37 × 7,469.14
  4. Step 4: Simplify right side
    18,562.35x = 208,070,486.80
  5. Step 5: Solve for x
    x = 208,070,486.80/18,562.35
  6. Step 6: Final answer
    x = 11,209.27

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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.