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Finding the Fourth Proportional to 1,027.94, 1,548.85 and 849.34

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Solution

The fourth proportional to 1,027.94, 1,548.85 and 849.34 is: 1,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027.94 : 1,548.85 = 849.34 : x
  2. Step 2: Convert to fraction form
    1,027.94/1,548.85 = 849.34/x
  3. Step 3: Cross multiply
    1,027.94x = 1,548.85 × 849.34
  4. Step 4: Simplify right side
    1,027.94x = 1,315,500.26
  5. Step 5: Solve for x
    x = 1,315,500.26/1,027.94
  6. Step 6: Final answer
    x = 1,279.74

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.