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Finding the Fourth Proportional to 68,451.60, 94,462.02 and 38,235

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Solution

The fourth proportional to 68,451.60, 94,462.02 and 38,235 is: 52,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,451.60 : 94,462.02 = 38,235 : x
  2. Step 2: Convert to fraction form
    68,451.60/94,462.02 = 38,235/x
  3. Step 3: Cross multiply
    68,451.60x = 94,462.02 × 38,235
  4. Step 4: Simplify right side
    68,451.60x = 3,611,755,334.70
  5. Step 5: Solve for x
    x = 3,611,755,334.70/68,451.60
  6. Step 6: Final answer
    x = 52,763.64

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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.