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Finding the Fourth Proportional to 1,934, 2,900.96 and 547.32

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Solution

The fourth proportional to 1,934, 2,900.96 and 547.32 is: 820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934 : 2,900.96 = 547.32 : x
  2. Step 2: Convert to fraction form
    1,934/2,900.96 = 547.32/x
  3. Step 3: Cross multiply
    1,934x = 2,900.96 × 547.32
  4. Step 4: Simplify right side
    1,934x = 1,587,753.43
  5. Step 5: Solve for x
    x = 1,587,753.43/1,934
  6. Step 6: Final answer
    x = 820.97

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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.