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Finding the Fourth Proportional to 64,449.70, 96,674.56 and 20,080.02

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Solution

The fourth proportional to 64,449.70, 96,674.56 and 20,080.02 is: 30,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,449.70 : 96,674.56 = 20,080.02 : x
  2. Step 2: Convert to fraction form
    64,449.70/96,674.56 = 20,080.02/x
  3. Step 3: Cross multiply
    64,449.70x = 96,674.56 × 20,080.02
  4. Step 4: Simplify right side
    64,449.70x = 1,941,227,098.29
  5. Step 5: Solve for x
    x = 1,941,227,098.29/64,449.70
  6. Step 6: Final answer
    x = 30,120.03

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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.