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Finding the Fourth Proportional to 1,732.43, 2,390.96 and 965.97

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Solution

The fourth proportional to 1,732.43, 2,390.96 and 965.97 is: 1,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.43 : 2,390.96 = 965.97 : x
  2. Step 2: Convert to fraction form
    1,732.43/2,390.96 = 965.97/x
  3. Step 3: Cross multiply
    1,732.43x = 2,390.96 × 965.97
  4. Step 4: Simplify right side
    1,732.43x = 2,309,595.63
  5. Step 5: Solve for x
    x = 2,309,595.63/1,732.43
  6. Step 6: Final answer
    x = 1,333.15

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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.