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Finding the Fourth Proportional to 18,065.55, 24,919.55 and 11,933.29

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Solution

The fourth proportional to 18,065.55, 24,919.55 and 11,933.29 is: 16,460.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.55 : 24,919.55 = 11,933.29 : x
  2. Step 2: Convert to fraction form
    18,065.55/24,919.55 = 11,933.29/x
  3. Step 3: Cross multiply
    18,065.55x = 24,919.55 × 11,933.29
  4. Step 4: Simplify right side
    18,065.55x = 297,372,157.15
  5. Step 5: Solve for x
    x = 297,372,157.15/18,065.55
  6. Step 6: Final answer
    x = 16,460.73

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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.