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Finding the Fourth Proportional to 63,399.67, 87,479 and 36,175.16

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Solution

The fourth proportional to 63,399.67, 87,479 and 36,175.16 is: 49,914.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,399.67 : 87,479 = 36,175.16 : x
  2. Step 2: Convert to fraction form
    63,399.67/87,479 = 36,175.16/x
  3. Step 3: Cross multiply
    63,399.67x = 87,479 × 36,175.16
  4. Step 4: Simplify right side
    63,399.67x = 3,164,566,821.64
  5. Step 5: Solve for x
    x = 3,164,566,821.64/63,399.67
  6. Step 6: Final answer
    x = 49,914.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.