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Finding the Fourth Proportional to 65,043.73, 89,760.45 and 36,749.44

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Solution

The fourth proportional to 65,043.73, 89,760.45 and 36,749.44 is: 50,714.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,043.73 : 89,760.45 = 36,749.44 : x
  2. Step 2: Convert to fraction form
    65,043.73/89,760.45 = 36,749.44/x
  3. Step 3: Cross multiply
    65,043.73x = 89,760.45 × 36,749.44
  4. Step 4: Simplify right side
    65,043.73x = 3,298,646,271.65
  5. Step 5: Solve for x
    x = 3,298,646,271.65/65,043.73
  6. Step 6: Final answer
    x = 50,714.29

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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.