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Finding the Fourth Proportional to 18,249.93, 27,424.35 and 9,936.09

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Solution

The fourth proportional to 18,249.93, 27,424.35 and 9,936.09 is: 14,931.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.93 : 27,424.35 = 9,936.09 : x
  2. Step 2: Convert to fraction form
    18,249.93/27,424.35 = 9,936.09/x
  3. Step 3: Cross multiply
    18,249.93x = 27,424.35 × 9,936.09
  4. Step 4: Simplify right side
    18,249.93x = 272,490,809.79
  5. Step 5: Solve for x
    x = 272,490,809.79/18,249.93
  6. Step 6: Final answer
    x = 14,931.06

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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.