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Finding the Fourth Proportional to 7,076.22, 9,765.12 and 3,932.34

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Solution

The fourth proportional to 7,076.22, 9,765.12 and 3,932.34 is: 5,426.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,076.22 : 9,765.12 = 3,932.34 : x
  2. Step 2: Convert to fraction form
    7,076.22/9,765.12 = 3,932.34/x
  3. Step 3: Cross multiply
    7,076.22x = 9,765.12 × 3,932.34
  4. Step 4: Simplify right side
    7,076.22x = 38,399,771.98
  5. Step 5: Solve for x
    x = 38,399,771.98/7,076.22
  6. Step 6: Final answer
    x = 5,426.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.