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Finding the Fourth Proportional to 6,998.65, 9,648.46 and 5,005.73

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Solution

The fourth proportional to 6,998.65, 9,648.46 and 5,005.73 is: 6,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.65 : 9,648.46 = 5,005.73 : x
  2. Step 2: Convert to fraction form
    6,998.65/9,648.46 = 5,005.73/x
  3. Step 3: Cross multiply
    6,998.65x = 9,648.46 × 5,005.73
  4. Step 4: Simplify right side
    6,998.65x = 48,297,585.68
  5. Step 5: Solve for x
    x = 48,297,585.68/6,998.65
  6. Step 6: Final answer
    x = 6,900.99

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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.