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Finding the Fourth Proportional to 6,144.65, 8,479.85 and 3,350.15

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Solution

The fourth proportional to 6,144.65, 8,479.85 and 3,350.15 is: 4,623.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.65 : 8,479.85 = 3,350.15 : x
  2. Step 2: Convert to fraction form
    6,144.65/8,479.85 = 3,350.15/x
  3. Step 3: Cross multiply
    6,144.65x = 8,479.85 × 3,350.15
  4. Step 4: Simplify right side
    6,144.65x = 28,408,710.33
  5. Step 5: Solve for x
    x = 28,408,710.33/6,144.65
  6. Step 6: Final answer
    x = 4,623.33

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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.