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Finding the Fourth Proportional to 6,306.05, 8,703.03 and 3,948.95

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Solution

The fourth proportional to 6,306.05, 8,703.03 and 3,948.95 is: 5,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,306.05 : 8,703.03 = 3,948.95 : x
  2. Step 2: Convert to fraction form
    6,306.05/8,703.03 = 3,948.95/x
  3. Step 3: Cross multiply
    6,306.05x = 8,703.03 × 3,948.95
  4. Step 4: Simplify right side
    6,306.05x = 34,367,786.80
  5. Step 5: Solve for x
    x = 34,367,786.80/6,306.05
  6. Step 6: Final answer
    x = 5,449.97

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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.