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Finding the Fourth Proportional to 6,961.18, 9,553.16 and 6,911.97

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Solution

The fourth proportional to 6,961.18, 9,553.16 and 6,911.97 is: 9,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,961.18 : 9,553.16 = 6,911.97 : x
  2. Step 2: Convert to fraction form
    6,961.18/9,553.16 = 6,911.97/x
  3. Step 3: Cross multiply
    6,961.18x = 9,553.16 × 6,911.97
  4. Step 4: Simplify right side
    6,961.18x = 66,031,155.33
  5. Step 5: Solve for x
    x = 66,031,155.33/6,961.18
  6. Step 6: Final answer
    x = 9,485.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.