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Finding the Fourth Proportional to 44,633.21, 66,949.75 and 18,319.42

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Solution

The fourth proportional to 44,633.21, 66,949.75 and 18,319.42 is: 27,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,633.21 : 66,949.75 = 18,319.42 : x
  2. Step 2: Convert to fraction form
    44,633.21/66,949.75 = 18,319.42/x
  3. Step 3: Cross multiply
    44,633.21x = 66,949.75 × 18,319.42
  4. Step 4: Simplify right side
    44,633.21x = 1,226,480,375.97
  5. Step 5: Solve for x
    x = 1,226,480,375.97/44,633.21
  6. Step 6: Final answer
    x = 27,479.10

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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.