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Finding the Fourth Proportional to 1,696.72, 2,541.48 and 965.92

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Solution

The fourth proportional to 1,696.72, 2,541.48 and 965.92 is: 1,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,696.72 : 2,541.48 = 965.92 : x
  2. Step 2: Convert to fraction form
    1,696.72/2,541.48 = 965.92/x
  3. Step 3: Cross multiply
    1,696.72x = 2,541.48 × 965.92
  4. Step 4: Simplify right side
    1,696.72x = 2,454,866.36
  5. Step 5: Solve for x
    x = 2,454,866.36/1,696.72
  6. Step 6: Final answer
    x = 1,446.83

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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.