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Finding the Fourth Proportional to 69,835.90, 96,375.71 and 39,622.49

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Solution

The fourth proportional to 69,835.90, 96,375.71 and 39,622.49 is: 54,680.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,835.90 : 96,375.71 = 39,622.49 : x
  2. Step 2: Convert to fraction form
    69,835.90/96,375.71 = 39,622.49/x
  3. Step 3: Cross multiply
    69,835.90x = 96,375.71 × 39,622.49
  4. Step 4: Simplify right side
    69,835.90x = 3,818,645,605.72
  5. Step 5: Solve for x
    x = 3,818,645,605.72/69,835.90
  6. Step 6: Final answer
    x = 54,680.27

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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.