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Finding the Fourth Proportional to 1,957.44, 2,935.68 and 862.08

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Solution

The fourth proportional to 1,957.44, 2,935.68 and 862.08 is: 1,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.44 : 2,935.68 = 862.08 : x
  2. Step 2: Convert to fraction form
    1,957.44/2,935.68 = 862.08/x
  3. Step 3: Cross multiply
    1,957.44x = 2,935.68 × 862.08
  4. Step 4: Simplify right side
    1,957.44x = 2,530,791.01
  5. Step 5: Solve for x
    x = 2,530,791.01/1,957.44
  6. Step 6: Final answer
    x = 1,292.91

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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.