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Finding the Fourth Proportional to 18,609.05, 27,923.07 and 12,373.31

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Solution

The fourth proportional to 18,609.05, 27,923.07 and 12,373.31 is: 18,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,609.05 : 27,923.07 = 12,373.31 : x
  2. Step 2: Convert to fraction form
    18,609.05/27,923.07 = 12,373.31/x
  3. Step 3: Cross multiply
    18,609.05x = 27,923.07 × 12,373.31
  4. Step 4: Simplify right side
    18,609.05x = 345,500,801.26
  5. Step 5: Solve for x
    x = 345,500,801.26/18,609.05
  6. Step 6: Final answer
    x = 18,566.28

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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.