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Finding the Fourth Proportional to 1,711.91, 2,362.44 and 925.96

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Solution

The fourth proportional to 1,711.91, 2,362.44 and 925.96 is: 1,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.91 : 2,362.44 = 925.96 : x
  2. Step 2: Convert to fraction form
    1,711.91/2,362.44 = 925.96/x
  3. Step 3: Cross multiply
    1,711.91x = 2,362.44 × 925.96
  4. Step 4: Simplify right side
    1,711.91x = 2,187,520.31
  5. Step 5: Solve for x
    x = 2,187,520.31/1,711.91
  6. Step 6: Final answer
    x = 1,277.83

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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.