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Finding the Fourth Proportional to 18,393.62, 27,590.43 and 11,000.24

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Solution

The fourth proportional to 18,393.62, 27,590.43 and 11,000.24 is: 16,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.62 : 27,590.43 = 11,000.24 : x
  2. Step 2: Convert to fraction form
    18,393.62/27,590.43 = 11,000.24/x
  3. Step 3: Cross multiply
    18,393.62x = 27,590.43 × 11,000.24
  4. Step 4: Simplify right side
    18,393.62x = 303,501,351.70
  5. Step 5: Solve for x
    x = 303,501,351.70/18,393.62
  6. Step 6: Final answer
    x = 16,500.36

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Half scale
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Double scale
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Similar ratio
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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.