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Finding the Fourth Proportional to 2,092.44, 3,139 and 705.90

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Solution

The fourth proportional to 2,092.44, 3,139 and 705.90 is: 1,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.44 : 3,139 = 705.90 : x
  2. Step 2: Convert to fraction form
    2,092.44/3,139 = 705.90/x
  3. Step 3: Cross multiply
    2,092.44x = 3,139 × 705.90
  4. Step 4: Simplify right side
    2,092.44x = 2,215,820.10
  5. Step 5: Solve for x
    x = 2,215,820.10/2,092.44
  6. Step 6: Final answer
    x = 1,058.96

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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.