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Finding the Fourth Proportional to 18,442.62, 27,662.24 and 7,346.32

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Solution

The fourth proportional to 18,442.62, 27,662.24 and 7,346.32 is: 11,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.62 : 27,662.24 = 7,346.32 : x
  2. Step 2: Convert to fraction form
    18,442.62/27,662.24 = 7,346.32/x
  3. Step 3: Cross multiply
    18,442.62x = 27,662.24 × 7,346.32
  4. Step 4: Simplify right side
    18,442.62x = 203,215,616.17
  5. Step 5: Solve for x
    x = 203,215,616.17/18,442.62
  6. Step 6: Final answer
    x = 11,018.80

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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.