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Finding the Fourth Proportional to 7,961.59, 11,940.79 and 7,566.41

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Solution

The fourth proportional to 7,961.59, 11,940.79 and 7,566.41 is: 11,348.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.59 : 11,940.79 = 7,566.41 : x
  2. Step 2: Convert to fraction form
    7,961.59/11,940.79 = 7,566.41/x
  3. Step 3: Cross multiply
    7,961.59x = 11,940.79 × 7,566.41
  4. Step 4: Simplify right side
    7,961.59x = 90,348,959.27
  5. Step 5: Solve for x
    x = 90,348,959.27/7,961.59
  6. Step 6: Final answer
    x = 11,348.10

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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.