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Finding the Fourth Proportional to 6,610.96, 9,918.28 and 5,375.32

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Solution

The fourth proportional to 6,610.96, 9,918.28 and 5,375.32 is: 8,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,610.96 : 9,918.28 = 5,375.32 : x
  2. Step 2: Convert to fraction form
    6,610.96/9,918.28 = 5,375.32/x
  3. Step 3: Cross multiply
    6,610.96x = 9,918.28 × 5,375.32
  4. Step 4: Simplify right side
    6,610.96x = 53,313,928.85
  5. Step 5: Solve for x
    x = 53,313,928.85/6,610.96
  6. Step 6: Final answer
    x = 8,064.48

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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.