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Finding the Fourth Proportional to 59,469.30, 82,071.44 and 39,290.79

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Solution

The fourth proportional to 59,469.30, 82,071.44 and 39,290.79 is: 54,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,469.30 : 82,071.44 = 39,290.79 : x
  2. Step 2: Convert to fraction form
    59,469.30/82,071.44 = 39,290.79/x
  3. Step 3: Cross multiply
    59,469.30x = 82,071.44 × 39,290.79
  4. Step 4: Simplify right side
    59,469.30x = 3,224,651,517.58
  5. Step 5: Solve for x
    x = 3,224,651,517.58/59,469.30
  6. Step 6: Final answer
    x = 54,223.80

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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.