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Finding the Fourth Proportional to 7,505.60, 11,234.10 and 6,630.80

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Solution

The fourth proportional to 7,505.60, 11,234.10 and 6,630.80 is: 9,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,505.60 : 11,234.10 = 6,630.80 : x
  2. Step 2: Convert to fraction form
    7,505.60/11,234.10 = 6,630.80/x
  3. Step 3: Cross multiply
    7,505.60x = 11,234.10 × 6,630.80
  4. Step 4: Simplify right side
    7,505.60x = 74,491,070.28
  5. Step 5: Solve for x
    x = 74,491,070.28/7,505.60
  6. Step 6: Final answer
    x = 9,924.73

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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.