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Finding the Fourth Proportional to 1,930.27, 2,894.80 and 697.52

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Solution

The fourth proportional to 1,930.27, 2,894.80 and 697.52 is: 1,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.27 : 2,894.80 = 697.52 : x
  2. Step 2: Convert to fraction form
    1,930.27/2,894.80 = 697.52/x
  3. Step 3: Cross multiply
    1,930.27x = 2,894.80 × 697.52
  4. Step 4: Simplify right side
    1,930.27x = 2,019,180.90
  5. Step 5: Solve for x
    x = 2,019,180.90/1,930.27
  6. Step 6: Final answer
    x = 1,046.06

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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.