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Finding the Fourth Proportional to 45,622.60, 68,456.60 and 25,619.68

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Solution

The fourth proportional to 45,622.60, 68,456.60 and 25,619.68 is: 38,442.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,622.60 : 68,456.60 = 25,619.68 : x
  2. Step 2: Convert to fraction form
    45,622.60/68,456.60 = 25,619.68/x
  3. Step 3: Cross multiply
    45,622.60x = 68,456.60 × 25,619.68
  4. Step 4: Simplify right side
    45,622.60x = 1,753,836,185.89
  5. Step 5: Solve for x
    x = 1,753,836,185.89/45,622.60
  6. Step 6: Final answer
    x = 38,442.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.