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Finding the Fourth Proportional to 2,451.33, 3,676.20 and 807.48

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Solution

The fourth proportional to 2,451.33, 3,676.20 and 807.48 is: 1,210.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.33 : 3,676.20 = 807.48 : x
  2. Step 2: Convert to fraction form
    2,451.33/3,676.20 = 807.48/x
  3. Step 3: Cross multiply
    2,451.33x = 3,676.20 × 807.48
  4. Step 4: Simplify right side
    2,451.33x = 2,968,455.96
  5. Step 5: Solve for x
    x = 2,968,455.96/2,451.33
  6. Step 6: Final answer
    x = 1,210.96

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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.