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Finding the Fourth Proportional to 62,999.21, 86,934.77 and 34,704.89

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Solution

The fourth proportional to 62,999.21, 86,934.77 and 34,704.89 is: 47,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,999.21 : 86,934.77 = 34,704.89 : x
  2. Step 2: Convert to fraction form
    62,999.21/86,934.77 = 34,704.89/x
  3. Step 3: Cross multiply
    62,999.21x = 86,934.77 × 34,704.89
  4. Step 4: Simplify right side
    62,999.21x = 3,017,061,630.03
  5. Step 5: Solve for x
    x = 3,017,061,630.03/62,999.21
  6. Step 6: Final answer
    x = 47,890.47

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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.