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Finding the Fourth Proportional to 43,361.62, 65,044.32 and 14,918.16

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Solution

The fourth proportional to 43,361.62, 65,044.32 and 14,918.16 is: 22,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,361.62 : 65,044.32 = 14,918.16 : x
  2. Step 2: Convert to fraction form
    43,361.62/65,044.32 = 14,918.16/x
  3. Step 3: Cross multiply
    43,361.62x = 65,044.32 × 14,918.16
  4. Step 4: Simplify right side
    43,361.62x = 970,341,572.85
  5. Step 5: Solve for x
    x = 970,341,572.85/43,361.62
  6. Step 6: Final answer
    x = 22,377.89

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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.