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Finding the Fourth Proportional to 9,198.51, 12,694.22 and 6,514.53

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Solution

The fourth proportional to 9,198.51, 12,694.22 and 6,514.53 is: 8,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.51 : 12,694.22 = 6,514.53 : x
  2. Step 2: Convert to fraction form
    9,198.51/12,694.22 = 6,514.53/x
  3. Step 3: Cross multiply
    9,198.51x = 12,694.22 × 6,514.53
  4. Step 4: Simplify right side
    9,198.51x = 82,696,876.60
  5. Step 5: Solve for x
    x = 82,696,876.60/9,198.51
  6. Step 6: Final answer
    x = 8,990.25

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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.