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Finding the Fourth Proportional to 18,107.64, 27,150.48 and 7,004.97

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Solution

The fourth proportional to 18,107.64, 27,150.48 and 7,004.97 is: 10,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.64 : 27,150.48 = 7,004.97 : x
  2. Step 2: Convert to fraction form
    18,107.64/27,150.48 = 7,004.97/x
  3. Step 3: Cross multiply
    18,107.64x = 27,150.48 × 7,004.97
  4. Step 4: Simplify right side
    18,107.64x = 190,188,297.89
  5. Step 5: Solve for x
    x = 190,188,297.89/18,107.64
  6. Step 6: Final answer
    x = 10,503.21

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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.