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Finding the Fourth Proportional to 1,676.13, 2,313.30 and 967.83

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Solution

The fourth proportional to 1,676.13, 2,313.30 and 967.83 is: 1,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.13 : 2,313.30 = 967.83 : x
  2. Step 2: Convert to fraction form
    1,676.13/2,313.30 = 967.83/x
  3. Step 3: Cross multiply
    1,676.13x = 2,313.30 × 967.83
  4. Step 4: Simplify right side
    1,676.13x = 2,238,881.14
  5. Step 5: Solve for x
    x = 2,238,881.14/1,676.13
  6. Step 6: Final answer
    x = 1,335.74

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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.