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Finding the Fourth Proportional to 6,247.84, 9,369.60 and 2,778.88

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Solution

The fourth proportional to 6,247.84, 9,369.60 and 2,778.88 is: 4,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247.84 : 9,369.60 = 2,778.88 : x
  2. Step 2: Convert to fraction form
    6,247.84/9,369.60 = 2,778.88/x
  3. Step 3: Cross multiply
    6,247.84x = 9,369.60 × 2,778.88
  4. Step 4: Simplify right side
    6,247.84x = 26,036,994.05
  5. Step 5: Solve for x
    x = 26,036,994.05/6,247.84
  6. Step 6: Final answer
    x = 4,167.36

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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.