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Finding the Fourth Proportional to 18,172.26, 27,258.38 and 4,845.26

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Solution

The fourth proportional to 18,172.26, 27,258.38 and 4,845.26 is: 7,267.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172.26 : 27,258.38 = 4,845.26 : x
  2. Step 2: Convert to fraction form
    18,172.26/27,258.38 = 4,845.26/x
  3. Step 3: Cross multiply
    18,172.26x = 27,258.38 × 4,845.26
  4. Step 4: Simplify right side
    18,172.26x = 132,073,938.28
  5. Step 5: Solve for x
    x = 132,073,938.28/18,172.26
  6. Step 6: Final answer
    x = 7,267.89

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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.