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Finding the Fourth Proportional to 68,458.55, 94,469.41 and 38,237.85

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Solution

The fourth proportional to 68,458.55, 94,469.41 and 38,237.85 is: 52,766.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,458.55 : 94,469.41 = 38,237.85 : x
  2. Step 2: Convert to fraction form
    68,458.55/94,469.41 = 38,237.85/x
  3. Step 3: Cross multiply
    68,458.55x = 94,469.41 × 38,237.85
  4. Step 4: Simplify right side
    68,458.55x = 3,612,307,129.17
  5. Step 5: Solve for x
    x = 3,612,307,129.17/68,458.55
  6. Step 6: Final answer
    x = 52,766.34

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1.5x scale

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.