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Finding the Fourth Proportional to 18,003.66, 24,843.87 and 11,289

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Solution

The fourth proportional to 18,003.66, 24,843.87 and 11,289 is: 15,578.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.66 : 24,843.87 = 11,289 : x
  2. Step 2: Convert to fraction form
    18,003.66/24,843.87 = 11,289/x
  3. Step 3: Cross multiply
    18,003.66x = 24,843.87 × 11,289
  4. Step 4: Simplify right side
    18,003.66x = 280,462,448.43
  5. Step 5: Solve for x
    x = 280,462,448.43/18,003.66
  6. Step 6: Final answer
    x = 15,578.08

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1.5x scale

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.