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Finding the Fourth Proportional to 18,201.26, 27,305.78 and 10,307.48

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Solution

The fourth proportional to 18,201.26, 27,305.78 and 10,307.48 is: 15,463.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.26 : 27,305.78 = 10,307.48 : x
  2. Step 2: Convert to fraction form
    18,201.26/27,305.78 = 10,307.48/x
  3. Step 3: Cross multiply
    18,201.26x = 27,305.78 × 10,307.48
  4. Step 4: Simplify right side
    18,201.26x = 281,453,593.17
  5. Step 5: Solve for x
    x = 281,453,593.17/18,201.26
  6. Step 6: Final answer
    x = 15,463.41

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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.