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Finding the Fourth Proportional to 68,859.90, 95,025.60 and 38,234.70

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Solution

The fourth proportional to 68,859.90, 95,025.60 and 38,234.70 is: 52,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,859.90 : 95,025.60 = 38,234.70 : x
  2. Step 2: Convert to fraction form
    68,859.90/95,025.60 = 38,234.70/x
  3. Step 3: Cross multiply
    68,859.90x = 95,025.60 × 38,234.70
  4. Step 4: Simplify right side
    68,859.90x = 3,633,275,308.32
  5. Step 5: Solve for x
    x = 3,633,275,308.32/68,859.90
  6. Step 6: Final answer
    x = 52,763.30

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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.