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Finding the Fourth Proportional to 18,336.62, 27,505.02 and 4,485.62

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Solution

The fourth proportional to 18,336.62, 27,505.02 and 4,485.62 is: 6,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,336.62 : 27,505.02 = 4,485.62 : x
  2. Step 2: Convert to fraction form
    18,336.62/27,505.02 = 4,485.62/x
  3. Step 3: Cross multiply
    18,336.62x = 27,505.02 × 4,485.62
  4. Step 4: Simplify right side
    18,336.62x = 123,377,067.81
  5. Step 5: Solve for x
    x = 123,377,067.81/18,336.62
  6. Step 6: Final answer
    x = 6,728.45

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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.