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Finding the Fourth Proportional to 18,484.62, 27,745.62 and 16,389.66

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Solution

The fourth proportional to 18,484.62, 27,745.62 and 16,389.66 is: 24,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.62 : 27,745.62 = 16,389.66 : x
  2. Step 2: Convert to fraction form
    18,484.62/27,745.62 = 16,389.66/x
  3. Step 3: Cross multiply
    18,484.62x = 27,745.62 × 16,389.66
  4. Step 4: Simplify right side
    18,484.62x = 454,741,278.29
  5. Step 5: Solve for x
    x = 454,741,278.29/18,484.62
  6. Step 6: Final answer
    x = 24,601.06

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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.