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Finding the Fourth Proportional to 18,249.89, 27,374.86 and 4,398.89

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Solution

The fourth proportional to 18,249.89, 27,374.86 and 4,398.89 is: 6,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.89 : 27,374.86 = 4,398.89 : x
  2. Step 2: Convert to fraction form
    18,249.89/27,374.86 = 4,398.89/x
  3. Step 3: Cross multiply
    18,249.89x = 27,374.86 × 4,398.89
  4. Step 4: Simplify right side
    18,249.89x = 120,419,020.51
  5. Step 5: Solve for x
    x = 120,419,020.51/18,249.89
  6. Step 6: Final answer
    x = 6,598.34

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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.