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Finding the Fourth Proportional to 6,949.70, 9,590.30 and 3,805.89

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Solution

The fourth proportional to 6,949.70, 9,590.30 and 3,805.89 is: 5,251.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949.70 : 9,590.30 = 3,805.89 : x
  2. Step 2: Convert to fraction form
    6,949.70/9,590.30 = 3,805.89/x
  3. Step 3: Cross multiply
    6,949.70x = 9,590.30 × 3,805.89
  4. Step 4: Simplify right side
    6,949.70x = 36,499,607.84
  5. Step 5: Solve for x
    x = 36,499,607.84/6,949.70
  6. Step 6: Final answer
    x = 5,251.97

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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.