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Finding the Fourth Proportional to 1,907.52, 2,861.28 and 591.27

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Solution

The fourth proportional to 1,907.52, 2,861.28 and 591.27 is: 886.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.52 : 2,861.28 = 591.27 : x
  2. Step 2: Convert to fraction form
    1,907.52/2,861.28 = 591.27/x
  3. Step 3: Cross multiply
    1,907.52x = 2,861.28 × 591.27
  4. Step 4: Simplify right side
    1,907.52x = 1,691,789.03
  5. Step 5: Solve for x
    x = 1,691,789.03/1,907.52
  6. Step 6: Final answer
    x = 886.91

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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.