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Finding the Fourth Proportional to 15,997.78, 23,974.12 and 7,555.28

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Solution

The fourth proportional to 15,997.78, 23,974.12 and 7,555.28 is: 11,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,997.78 : 23,974.12 = 7,555.28 : x
  2. Step 2: Convert to fraction form
    15,997.78/23,974.12 = 7,555.28/x
  3. Step 3: Cross multiply
    15,997.78x = 23,974.12 × 7,555.28
  4. Step 4: Simplify right side
    15,997.78x = 181,131,189.35
  5. Step 5: Solve for x
    x = 181,131,189.35/15,997.78
  6. Step 6: Final answer
    x = 11,322.27

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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.