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Finding the Fourth Proportional to 18,341.64, 27,512.52 and 4,490.64

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Solution

The fourth proportional to 18,341.64, 27,512.52 and 4,490.64 is: 6,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.64 : 27,512.52 = 4,490.64 : x
  2. Step 2: Convert to fraction form
    18,341.64/27,512.52 = 4,490.64/x
  3. Step 3: Cross multiply
    18,341.64x = 27,512.52 × 4,490.64
  4. Step 4: Simplify right side
    18,341.64x = 123,548,822.81
  5. Step 5: Solve for x
    x = 123,548,822.81/18,341.64
  6. Step 6: Final answer
    x = 6,735.97

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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.