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Finding the Fourth Proportional to 2,060.64, 3,090.36 and 673.92

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Solution

The fourth proportional to 2,060.64, 3,090.36 and 673.92 is: 1,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,060.64 : 3,090.36 = 673.92 : x
  2. Step 2: Convert to fraction form
    2,060.64/3,090.36 = 673.92/x
  3. Step 3: Cross multiply
    2,060.64x = 3,090.36 × 673.92
  4. Step 4: Simplify right side
    2,060.64x = 2,082,655.41
  5. Step 5: Solve for x
    x = 2,082,655.41/2,060.64
  6. Step 6: Final answer
    x = 1,010.68

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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.