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Finding the Fourth Proportional to 69,000.90, 95,220 and 38,375.88

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Solution

The fourth proportional to 69,000.90, 95,220 and 38,375.88 is: 52,958.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.90 : 95,220 = 38,375.88 : x
  2. Step 2: Convert to fraction form
    69,000.90/95,220 = 38,375.88/x
  3. Step 3: Cross multiply
    69,000.90x = 95,220 × 38,375.88
  4. Step 4: Simplify right side
    69,000.90x = 3,654,151,293.60
  5. Step 5: Solve for x
    x = 3,654,151,293.60/69,000.90
  6. Step 6: Final answer
    x = 52,958.02

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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.