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Finding the Fourth Proportional to 7,665.84, 11,469.60 and 4,736.88

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Solution

The fourth proportional to 7,665.84, 11,469.60 and 4,736.88 is: 7,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.84 : 11,469.60 = 4,736.88 : x
  2. Step 2: Convert to fraction form
    7,665.84/11,469.60 = 4,736.88/x
  3. Step 3: Cross multiply
    7,665.84x = 11,469.60 × 4,736.88
  4. Step 4: Simplify right side
    7,665.84x = 54,330,118.85
  5. Step 5: Solve for x
    x = 54,330,118.85/7,665.84
  6. Step 6: Final answer
    x = 7,087.30

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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.