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Finding the Fourth Proportional to 45,851.60, 68,631.60 and 32,729.60

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Solution

The fourth proportional to 45,851.60, 68,631.60 and 32,729.60 is: 48,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,851.60 : 68,631.60 = 32,729.60 : x
  2. Step 2: Convert to fraction form
    45,851.60/68,631.60 = 32,729.60/x
  3. Step 3: Cross multiply
    45,851.60x = 68,631.60 × 32,729.60
  4. Step 4: Simplify right side
    45,851.60x = 2,246,284,815.36
  5. Step 5: Solve for x
    x = 2,246,284,815.36/45,851.60
  6. Step 6: Final answer
    x = 48,990.33

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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.