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Finding the Fourth Proportional to 18,262.74, 25,201.92 and 11,460.43

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Solution

The fourth proportional to 18,262.74, 25,201.92 and 11,460.43 is: 15,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.74 : 25,201.92 = 11,460.43 : x
  2. Step 2: Convert to fraction form
    18,262.74/25,201.92 = 11,460.43/x
  3. Step 3: Cross multiply
    18,262.74x = 25,201.92 × 11,460.43
  4. Step 4: Simplify right side
    18,262.74x = 288,824,840.03
  5. Step 5: Solve for x
    x = 288,824,840.03/18,262.74
  6. Step 6: Final answer
    x = 15,814.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.