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Finding the Fourth Proportional to 12,454.52, 17,187.03 and 6,789.49

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Solution

The fourth proportional to 12,454.52, 17,187.03 and 6,789.49 is: 9,369.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.52 : 17,187.03 = 6,789.49 : x
  2. Step 2: Convert to fraction form
    12,454.52/17,187.03 = 6,789.49/x
  3. Step 3: Cross multiply
    12,454.52x = 17,187.03 × 6,789.49
  4. Step 4: Simplify right side
    12,454.52x = 116,691,125.35
  5. Step 5: Solve for x
    x = 116,691,125.35/12,454.52
  6. Step 6: Final answer
    x = 9,369.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.