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Finding the Fourth Proportional to 17,361.64, 26,042.48 and 4,213.92

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Solution

The fourth proportional to 17,361.64, 26,042.48 and 4,213.92 is: 6,320.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,361.64 : 26,042.48 = 4,213.92 : x
  2. Step 2: Convert to fraction form
    17,361.64/26,042.48 = 4,213.92/x
  3. Step 3: Cross multiply
    17,361.64x = 26,042.48 × 4,213.92
  4. Step 4: Simplify right side
    17,361.64x = 109,741,019.71
  5. Step 5: Solve for x
    x = 109,741,019.71/17,361.64
  6. Step 6: Final answer
    x = 6,320.89

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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.