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Finding the Fourth Proportional to 6,608.68, 9,912.71 and 1,678.41

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Solution

The fourth proportional to 6,608.68, 9,912.71 and 1,678.41 is: 2,517.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.68 : 9,912.71 = 1,678.41 : x
  2. Step 2: Convert to fraction form
    6,608.68/9,912.71 = 1,678.41/x
  3. Step 3: Cross multiply
    6,608.68x = 9,912.71 × 1,678.41
  4. Step 4: Simplify right side
    6,608.68x = 16,637,595.79
  5. Step 5: Solve for x
    x = 16,637,595.79/6,608.68
  6. Step 6: Final answer
    x = 2,517.54

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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.