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Finding the Fourth Proportional to 6,613.88, 9,920.92 and 2,717.42

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Solution

The fourth proportional to 6,613.88, 9,920.92 and 2,717.42 is: 4,076.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.88 : 9,920.92 = 2,717.42 : x
  2. Step 2: Convert to fraction form
    6,613.88/9,920.92 = 2,717.42/x
  3. Step 3: Cross multiply
    6,613.88x = 9,920.92 × 2,717.42
  4. Step 4: Simplify right side
    6,613.88x = 26,959,306.43
  5. Step 5: Solve for x
    x = 26,959,306.43/6,613.88
  6. Step 6: Final answer
    x = 4,076.17

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1.5x scale

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.